Who Are Hillary Clinton's Likely Challengers?

Hillary Clinton is widely seen as a front-runner for Democratic Party's presidential nomination, and her resume makes her a strong rival to any Republican. Here is a look at some of her likely opponents in the White House race. Ted Cruz became the first candidate to launch the 2016 White House bid when he announced his campaign last month. The Texas senator, 44, is a conservative firebrand who frequently clashes with leaders of his Republican Party.