MICHEAL MARTINA and STEVE HOLLAND U.S. President Donald Trump and Democratic challenger Joe Biden planned to hit the campaign trail again on Friday with visits to three battleground states, after displaying their sharply contrasting styles in dueling televised town halls. Trump lags in opinion polls and latest figures from his campaign show he is also behind in fundraising in the final weeks before the November 3 election. Trump's campaign and the Republican National Committee raised some $247.8 million in September, his campaign manager said on Twitter, well behind the $383 million haul of Biden and the Democratic Party. As the…