They used to pay me to fight with Rep. Liz Cheney (R-Wyo.) on live TV. Now she’s fighting to keep the Republican Party alive. I’m no Republican. But this time I’ve got her back. You see, every American has a stake in preventing a major political party from being derailed by former President Trump’s supporters who prefer lies and conspiracy theories over reality. Everyone saw a dying party sliding off the rails last week when Republican senators ignored all facts to vote against convicting Trump on charges of inciting the riot at the Capitol. Democrats need the balance that comes...