ORLANDO, Fla. – President Donald Trump, his lawyers and some of his allies have repeatedly claimed widespread voter fraud illegally tilted last week’s election in favor of former Vice President Joe Biden.But nearly one week after the polls closed, no attorney had yet made such bold accusations in a formal court filing.[TRENDING: Eta drenches Florida | 2 killed in Orange County crash | Biden names COVID-19 task force]Since election-related lawsuits can be expensive to pursue, with attorneys who knowingly file frivolous lawsuits risking sanctions by the courts, many plaintiffs try to choose their legal battles wisely.During a Saturday morning news conference outside a Philadelphia landscaping company, Rudy Giuliani, the president’s personal.