COLUMBIA (AP) — Missouri Sen. Claire McCaskill has approvingly evoked former President Ronald Reagan. She said she would back President Donald Trump if he stopped a migrant caravan at the border. And speaking on Fox News, she has decried "crazy Democrats." What is the Democratic senator up to? The vulnerable incumbent is appealing to the right in a bid to win a third term in a state that Trump won by 19 percentage points in 2016. She's betting a more centrist message will resonate with independents and moderate Republican voters she desperately needs to beat Republican challenger Josh Hawley, who...