Rep. Liz Cheney greeted President Biden with a fist bump before his address to a joint session of Congress on April 28. Cheney responded to criticism by some GOP colleagues over the exchange by tweeting: “We’re different political parties. We’re not sworn enemies.”

Rep. Liz Cheney greeted President Biden with a fist bump before his address to a joint session of Congress on April 28. Cheney responded to criticism by some GOP colleagues over the exchange by tweeting: "We're different political parties. We're not sworn enemies."

Rep. Liz Cheney greeted President Biden with a fist bump before his address to a joint session of Congress on April 28. Cheney responded to criticism by some GOP colleagues over the exchange by tweeting: “We’re different political parties. We’re not sworn enemies.”

WASHINGTON, DC – APRIL 28: U.S. President Joe Biden greets Rep. Liz Cheney (R-WY) with a fist bump before addressing a joint session of congress in the House chamber of the U.S. Capitol April 28, 2021 in Washington, DC. On the eve of his 100th day in office, Biden spoke about his plan to revive America’s economy and health as it continues to recover from a devastating pandemic. He delivered his speech before 200 invited lawmakers and other government officials instead of the normal 1600 guests because of the ongoing COVID-19 pandemic. (Photo by Chip Somodevilla/Getty Images)