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By Steve Holland
WASHINGTON, July 13 (Reuters) - Donald Trump met with Indiana Governor Mike Pence on Wednesday, heightening speculation that Pence could emerge as the Republican presidential candidate's choice for vice presidential running mate.
Trump was joined at the governor's residence in Indianapolis by his daughter, Ivanka; son-in-law Jared Kushner; and sons Donald Trump Jr. and Eric Trump. The presumptive Republican presidential nominee and Pence had campaigned together at a rally on Tuesday night in Westfield, Indiana.
Trump is expected to announce his choice on Friday. Republicans close to the campaign said they believed the New York businessman had narrowed his short list to Pence, former U.S. House of Representatives Speaker Newt Gingrich and New Jersey Governor Chris Christie.
Trump has campaigned with all three men in recent days as he girds for perhaps the most consequential decision of his campaign ahead of the Nov. 8 election.
Pence introduced Trump at the campaign rally in Westfield on Tuesday evening, and during his speech, Trump teased the possibility of picking Pence.
"I don't know if he's going to be your governor or your vice president," Trump told the rally. Who the hell knows?"
Trump is to be formally nominated at the Republican National Convention next week in Cleveland. Traditionally, the vice presidential running mate choice is used to build enthusiasm among party loyalists.