 Complete the following phrase:  By April 2016, Clinton had begun discussions with advisers and allies regarding her potential running mate, though Bernie Sanders continued to challenge her in the Democratic primaries. According to campaign sources, Clinton did not have a particular running mate in mind, and did not feel pressured to pick a running mate designed specifically to appeal to Sanders supporters. There was relatively little public discussion about Sanderss running mate selection process. As the 2016 Republican National Convention took place roughly one week before the July 2528 