The political tirade between Donald Trump and Vivek Ramaswamy continued ahead of the important Iowa caucus, with the latter suggesting that the leaders should skip "friendly fire". This came after Trump accused the Indian-American entrepreneur of engaging in "deceitful campaign tricks". A verbal battle between Trump and Ramaswamy, both Republican candidates for presidential polls, erupted after the former US president reacted to a series of remarks Ramaswamy had posted about him. Ramaswamy's campaign had handed out shirts that read "Save Trump, Vote Vivek".