Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Biden's Verbal Gaffes Mounting Ken Bredemeier WASHINGTON - Former U.S. Vice President Joe Biden is the leading Democratic presidential contender among two dozen candidates looking to take on President Donald Trump in the 2020 election, but Biden is proving to be unchallenged at committing verbal gaffes on the campaign trail. Biden, with four decades on the American political scene, has long been afflicted with jumbling his public pronouncements into word salads that leave listeners guessing as to their meaning and political opponents quick to attack the 76-year-old politician. The latest instances have come in the Midwest farm state of Iowa, where many of the crowded field of Democrats have trekked to the annual state fair to eat pork on a stick, a local favorite, aim their verbal attacks at Trump and look for votes ahead of the first Democratic presidential nominating contest early next February. "We choose science over fiction. We choose truth over facts," Biden declared, as he attacked Trump from a newspaper's political soap box stand for the Democratic candidates. Trump was quick to belittle Biden, for 36 years a U.S. senator, eight years former President Barack Obama's second in command and twice an unsuccessful presidential candidate. "Does anybody really believe he is mentally fit to be president?," Trump said on Twitter. "We are 'playing' in a very big and complicated world. Joe doesn't have a clue!" Joe Biden just said, "We believe in facts, not truth." Does anybody really believe he is mentally fit to be president? We are "playing" in a very big and complicated world. Joe doesn't have a clue! -- Donald J. Trump (@realDonaldTrump) [1]August 10, 2019 As he left Washington for a vacation at his golf resort in New Jersey on Friday, Trump contended, "Joe Biden is not playing with a full deck." To be sure, Trump often exaggerates his claims, with some U.S. media outlets saying he lies outright and have called him a racist after saying recently that four congressional lawmakers, all women of color, should "go back" to their home countries, even though all are American citizens, three by birth and one, a Somali refugee, a naturalized citizen. References 1. https://twitter.com/realDonaldTrump/status/1160320950468009984?ref_src=twsrc%5Etfw .