David Hogg Goes After John McCain: Why Do You Take So Much Money From the NRA?

Student and gun control activist David Hogg has now turned his sights on one of the most high-profile U.S. senators in Congress: Sen. John McCain (R-AZ).

The 17-year-old tweeted Friday to McCain, who is in Arizona, recovering from brain cancer treatment, “Why do you take so much money from the NRA?”

McCain has not responded to Hogg’s tweet.

The Arizona senator and chairman of the Senate Armed Services Committee is the top recipient of donations from the National Rifle Association, according to the Center for Responsive Politics.

According to the center, McCain has received $7.7 million from the NRA.

Hogg’s tweet comes after he called for his Twitter followers to pressure advertisers to pull their ads from Fox News show host Laura Ingraham’s broadcast, after she said he was whining about college rejections.

“David Hogg Rejected By Four Colleges To Which He Applied and whines about it. (Dinged by UCLA with a 4.1 GPA…totally predictable given acceptance rates.),” she tweeted.

She later issued an apology, after advertisers being pulling their ads from her show.

McCain, 81, is a six-term senator, Vietnam War veteran, and former prisoner of war. He was one of four Republicans who supported a bipartisan bill on gun purchase background checks in 2013, which did not ultimately clear the Senate.