GLENDALE, Ariz. — Donald Trump is calling former Rep. Liz Cheney, one of his most prominent Republican critics, a “war hawk” and suggesting she might not be as willing to send troops to fight if she had guns pointed at her. Cheney responded by branding the GOP presidential nominee a “cruel, unstable man who wants to be a tyrant.” [time-brightcove not-tgx=”true”] At an event late Thursday in Arizona, with former Fox News host Tucker Carlson, Trump was asked whether it is strange to see Cheney campaign against him.