Who would Hillary Clinton and Donald Trump pi...

Presumptive Republican nominee Donald Trump has hired lawyer A.B. Culvahouse Jr., a veteran Washington staffer, to help with his vice presidential search.

CBS News has confirmed that Culvahouse, who vetted vice-presidential picks for 2008 GOP nominee John McCain and ultimately helped choose then-Alaska Gov. Sarah Palin, met with Trump at Trump Tower in Manhattan this week.

Culvahouse is also a former adviser to former President Ronald Reagan and has aided GOP nominees in five elections with their vice presidential searches.

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Trump has named multiple people to be involved in his search for a running mate, including campaign manager Corey Lewandowski and former GOP rival Ben Carson.

The GOP businessman has said he will announce his vice presidential pick in July at the Republican convention in Cleveland.

Trump has narrowed his list to approximately a half-dozen candidates with "deep political resumes," he told the Associated Press. He said he is placing a premium on a candidate who is able to help him navigate Washington.