Donald Trump lashed out at Sen. Jeff Flake on Sunday after the Republican from Arizona said he wasn't ready to vote for Trump.<br />"The Republican Party needs strong and committed leaders, not weak people such as @JeffFlake, if it is going to stop illegal immigration," Trump said on Twitter Sunday night.<br />He then tweeted an hour later: "The Great State of Arizona, where I just had a massive rally (amazing people), has a very weak and ineffective Senator, Jeff Flake.<br />Sad!"<br />In an interview with Jake Tapper on CNN's "State of the Union," Flake, a vocal Trump detractor, said he "simply can't" support Trump.
