Romney says he's not running - for US Senate

In his first prominent speech since telling donors last week he was still interested in the White House, Mitt Romney, the 2012 Republican nominee, hinted and quipped about a possible presidential run next year but stopped well short of any announcement. With the 2016 election cycle clearly underway and Jeb Bush announcing last month that he is actively exploring a presidential bid, Romney suddenly finds himself under political pressure to signal whether he is ready to mount a third campaign to l