Former Republican presidential candidate Marco Rubio reversed course Wednesday and said he will seek re-election to the Senate, telling Fox News: “I changed my mind.” The decision, widely expected among his Florida Republican colleagues, follows repeated claims during the GOP presidential primary race that he would not run again for Senate. Rubio for months had spoken about his frustrations with the Senate, in explaining his original decision to run for the presidency only – and defending himself against criticism for missed votes. But he told Fox News’ Chris Wallace on Wednesday while he’s “frustrated” with the Senate, it is “also...