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- More and more GOP lawmakers are backing Trump ahead of the Iowa Caucuses next week.
- That's dismaying to at least one GOP holdout: Sen. Lisa Murkowski of Alaska.
- "Republicans are giving up," she said. "Why shouldn't we demand the best this country can offer?"
In recent weeks, more and more Republican members of Congress are getting behind former President Donald Trump.
Every GOP party leader in the House has endorsed Trump, and this week, Sen. John Barrasso of Wyoming — the 3rd highest-ranking Republican in the chamber — did the same.