Since 2016, the cardinal rule of Republican politics has been to defend Donald J. Trump and his allies at all costs, no matter the allegation. That appeared to change last week, when Texas lawmakers issued 20 articles of impeachment against their state’s attorney general, Ken Paxton, a powerful Trump supporter.J. David Goodman, the Houston bureau chief for The New York Times, explains what the escalating conflict in Texas indicates about tensions within the party.Guest: J. David Goodman, the Houston bureau chief for The New York Times.Background reading: The extraordinary vote on impeachment exposed rifts among Texas Republicans and set the stage for a showdown in the State Senate.The escalating conflict between moderates and hard-liners in one of the Republican Party’s most important states highlights tension over the future of the party.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.