With the Republican National Convention just two months away, presumptive nominee Donald Trump is starting to narrow down his choice for a potential running mate. As previously reported, Sarah Palin is at the top of the list, along with other controversial names.

Trump's running mate

When Trump announced his candidacy for president last summer, most members of the media and political pundits didn't give him much a chance at success. Fast forward 11 months and the billionaire real estate mogul is the last man standing in the GOP primary and is looking into who will be joining his ticket heading into the general election this November.

As reported by The Hill, via CNN, on May 21, Trump is set to begin the vetting process on his future vice president.

Last week in a sit down interview with Fox News, Trump noted that former Arizona Gov. Jan Brewer and current Oklahoma Gov. Mary Fallin were both being considered. Just days later, Ben Carson, who previously was leading the search for Trump's running mate, leaked the fact that former half-term Alaska Gov. Sarah Palin was at the top of the list. Another odd name landing on the list, according to Carson, is Trump rival and former GOP candidate, Texas Sen.

Ted Cruz.

After Carson's remarks, Trump quickly attempted to backtrack the information that was leaked, but went on to hire A.B. Culvahouse, a Washington lawyer who was responsible for vetting Palin for John McCain's 2008 campaign.

Election outlook

Despite being surrounded by controversy throughout his campaign, Trump has been able to weather the storm and is expected to walk out of the convention this July a winner.

Democratic front runner Hillary Clinton is also the odds on favorite to become her party's nominee, and would face the former host of "The Apprentice" this fall. According to Real Clear Politics most recent rolling average, Clinton is leading Trump in most polls, though her advantage has diminished and she's only up by four points, 45.8 percent to 42.7 percent on a national level.