Pakistan, April 30 -- Comedian Jimmy Kimmel hit back at Donald Trump's call for him to lose his job over a joke about First Lady Melania Trump days before an alleged attempt to assassinate the US president.

Trump said Kimmel - who said the joke was about the couple's age difference - should be fired for likening Melania Trump to an "expectant widow."

In a show last week, Kimmel had portrayed himself in as the MC of upcoming White House Correspondents' Dinner in Washington on Saturday, addressing the first lady and saying "Mrs Trump, you have a glow like an expectant widow." Trump turns 80 in June and is the oldest president to take office in the United States. His wife, a former model who was born in Slovenia, is 56. The first lady also...