Sen. Joni Ernst (R-Iowa) said on Tuesday that President Trump's frequent trips to his Mar-a-Lago residence in Florida bother not only her, but other members of the Republican caucus. "I do wish he would spend more time in Washington, D.C.," Ernst said during a town hall meeting. "That's what we have the White House for." Since he took office, Trump has spent seven out of the last 13 weekends at his self-described "Southern White House" in Palm Beach. The visits have stirred controversy, in part because of the enormous costs associated with such frequent travel. One estimate of the weekend...