Screenshot via MSNBCThe father of a deceased Muslim US soldier who gave a rousing speech on the final night of the Democratic National Convention is reiterating his argument against Donald Trump's bid for the White House. Khizr Khan called out the Republican nominee in Philadelphia Thursday, in response to the real-estate mogul's controversial proposals to ban Muslim immigration to the US. "That was only half of my speech," Khan said, according to MSNBC on Friday. In an interview on the network, Khan appealed to top Republican leaders in Congress, asking them to reject Trump's candidacy.