Washington -  Hillary Clinton’s search for a running mate is moving into a more intense phase, as aides contact a pared-down pool of candidates to ask for reams of personal information and set up interviews with the presumptive Democratic nominee’s vetting team.

Those on the shortlist include Massachusetts Sen. Elizabeth Warren, a favorite of progressives; Virginia Sen. Tim Kaine, a well-liked lawmaker from an important general election battleground state; and Housing Secretary Julian Castro of Texas, a rising star in the Democratic Party.

That’s according to several Democrats, who described the process on the condition of anonymity because they were not authorized by the Clinton campaign to publicly discuss the vice presidential search.

Vermont Sen. Bernie Sanders is not on the shortlist of vice presidential candidates, according to one Democrat.... Read More: VIN