In advance of the release of Congress’ year-end spending package, the office of Sen. Jeff Sessions is highlighting some terrorists who were recently granted access to the U.S. through the nation’s immigration system.

In an email to reporters Tuesday, a Sessions aide listed more than 30 examples of immigrants admitted to the U.S. who were recently implicated in terrorist activities.

Sessions, the chairman of the Subcommittee on Immigration and the National Interest, and other conservative lawmakers have warned against passing a spending bill that does not place limitations on admissions — in particular refugee admission — to the U.S.

“Congress must cancel the President’s blank refugee check and put Congress back in charge of the program. We cannot allow the President to unilaterally decide how many refugees he wishes to admit, nor continue to force taxpayers to pick up the tab for the tens of billions of unpaid-for welfare and entitlement costs,” Sessions and Sen. Richard Shelby (R-AL), the chairman of the Commerce, Justice, and Science Appropriations subcommittee, said in a joint statement last week.

The pair added that passing the spending deal without limiting language “would put the U.S. on a path to approve admission for hundreds of thousands of migrants from a broad range of countries with jihadists movements over the next 12 months, on top of all the other autopilot annual immigration – absent language to reduce the numbers.”

The Sessions aide noted that the 30 examples are listed represented just a “partial” inventory of recently implicated terrorist migrants.

Read the list:

-A refugee from Uzbekistan was convicted of providing material support and money to a designated foreign terrorist organization. According to the Department of Justice, he also procured bomb-making materials in the interest of perpetrating a terrorist attack on American soil. (August 2015)

-An immigrant from Albania, who applied for and received Lawful Permanent Resident status, was sentenced to 16 years in prison for giving over $1,000 to terrorist organizations in Afghanistan, and for attempting to join a radical jihadist insurgent group in Pakistan. (August 2015)

-An immigrant from Egypt, who subsequently was granted U.S. citizenship, was charged with providing, and conspiring to provide, material support to ISIS, for aiding and abetting a New York college student in receiving terrorist training from ISIS, and conspiring to receive such training. (August 2015)

-An immigrant from India, who applied for and received Lawful Permanent Resident status by virtue of his marriage to an American citizen, was indicted in federal court on charges of conspiring to provide thousands of dollars to al-Qaeda in the Arabian Peninsula (AQAP) in order to assist them in their global jihad, and on one count of conspiracy to commit bank fraud. (November 2015)

-A second immigrant from India, who is married to a U.S. citizen, and who is the brother of the individual listed above, was also indicted on charges of conspiring to provide thousands of dollars to al-Qaeda in the Arabian Peninsula (AQAP) in order to assist them in their global jihad, and on one count of conspiracy to commit bank fraud. (November 2015)

-An immigrant from Pakistan, who entered the United States on a fiancé visa, and subsequently became a Lawful Permanent Resident, along with her husband, killed 14 people at a Christmas party, and wounded two dozen, in the deadliest terrorist attack on American soil since September 11, 2001. (December 2015)

-The son of Pakistani immigrants, along with his Pakistan bride, murdered 14 coworkers, and wounded two dozen, in that same terrorist attack.  His Pakistani-born father has since been placed on the no-fly list.

-An immigrant from Syria, who applied for and received Lawful Permanent Resident status, and then subsequently applied for and received U.S. citizenship, was charged with smuggling night-vision goggles and rifle scopes from America to a Syrian rebel group that fights alongside and allies itself with an al-Qaeda affiliate. (December 2015)

-A Somali-American was arrested after encouraging several friends to leave the United States and join ISIS, and giving one individual over $200 for their passport application. (December 2015)

-An immigrant from Bangladesh, who applied for and received U.S. citizenship, tried to incite people to travel  to Somalia and conduct violent jihad against the United States. (June 2014)

-An immigrant from Ghana, who applied for and received U.S. citizenship, pledged allegiance to ISIS and plotted a terrorist attack on U.S. soil. (June 2015)

-An immigrant from Sudan, who applied for and received U.S. citizenship, tried to join ISIS and wage jihad on its behalf after having been recruited online. (June 2015)

-A Bosnian refugee, along with his wife and five others, donated money and supplies, and smuggled arms, to terrorist organizations in Syria and Iraq. (February 2015)

-An immigrant from Yemen, who applied for and received U.S. citizenship, along with six other men, was charged with conspiracy to travel to Syria and to provide material support to ISIS. (April 2015)

-A Somali immigrant with lawful permanent resident status, along with four other Somali nationals, is charged with leading an al-Shabaab fundraising conspiracy in the United States, with monthly payments directed to the Somali terrorist organization. (July 2014)

– A Kazakhstani immigrant with lawful permanent resident status conspired to purchase a machine gun to shoot FBI and other law enforcement agents if they prevented him from traveling to Syria to join ISIS. (February 2015)

-An immigrant from Saudi Arabia, who applied for and received U.S. citizenship, swore allegiance to ISIS and pledged to explode a propane tank bomb on U.S. soil. (April 2015)

-A Uzbek man in Brooklyn encouraged other Uzbeki nationals to wage jihad on behalf of ISIS, and raised $1,600 for the terror organization. (April 2015)

-The Boston Bombers were granted political asylum and were thus deemed legitimate refugees. The younger brother applied for citizenship and was naturalized on September 11th, 2012. The older brother had a pending application for citizenship. (April 2013)

-A Moroccan national who came to the U.S. on a student visa was arrested for plotting to blow up a university and a federal court house. (April 2014)

– Numerous of Minnesota’s Somali-American refugee community have recently been charged with trying to join ISIS. The Washington Times reported that “the effort [to resettle large groups of Somali refugees in Minnesota] is having the unintended consequence of creating an enclave of immigrants with high unemployment that is both stressing the state’s safety net and creating a rich pool of potential recruiting targets for Islamist terror groups.” (February 2015)

-An Uzbek refugee living in Idaho was arrested and charged with providing support to a terrorist organization, in the form of teaching terror recruits how to build bombs. (July 2015)

-An American citizen whose family is from Syria was sentenced for plotting to support ISIS and rob a gun store to kill members of the American military. (April 2015)An immigrant from Syria, who later applied for and received U.S. citizenship, was accused by federal prosecutors of planning to “go to a military base in Texas and kill three or four American soldiers execution style.” (April 2015)

-A college student who immigrated from Somalia, who later applied for and received U.S. citizenship, attempted to blow up a Christmas tree lighting ceremony in Oregon. (October 2014)

-An immigrant from Afghanistan, who later applied for and received U.S. citizenship, and a legal permanent resident from the Philippines, were convicted for “join Al Qaeda and the Taliban in order to kill Americans.” (September 2014)

-An Iraqi immigrant, who later applied for and received U.S. citizenship, was arrested for lying to federal agents about pledging allegiance to ISIS and his travels to Syria. (May 2015)

-Two immigrants from Pakistan, who later applied for and received U.S citizenship, were sentenced to decades-long prison sentences for plotting to detonate a bomb in New York City. (2012)

-An immigrant from Yemen, who later applied for and received U.S. citizenship, was arrested for trying to join ISIS. He was also charged with attempting to illegally buy firearms to try to shoot American military personnel. (September 2014)

-An immigrant brought here by his family from Kuwait at a young age, and who was later approved for U.S. citizenship, carried out the Islamist attack that recently killed 4 military personnel in Chattanooga. (July 2015)