Rep. Adam Kinzinger, a Republican lawmaker who’s been an outspoken critic of former President Donald Trump, announced Friday that he will not seek re-election next year.

The 43-year-old Illinois representative announced his decision to retire from Congress in a five-minute-long video posted on social media.

“But let me be clear,” he said. “My passion for this country has only grown. My desire to make a difference is bigger than it’s ever been. My disappointment in the leaders that don’t lead is huge. The battlefield must be broader and the truth needs to reach the American people across the whole country.”

The Illinois Republican was one of 10 House Republicans to vote to impeach Trump in the wake of the riot and the second from that group to announce his retirement from Congress after Rep. Anthony Gonzalez, R-Ohio.

Kinzinger, a veteran of the Iraq war and war in Afghanistan, has served in Congress since 2011. He often dissociates himself from the rest of his party on matters relating to Trump.