Following the news of fugitive Norman Hsu fundraising for Hillary Clinton's campaign, a Center for Investigative Reporting investigation for Politico finds new examples of presidential candidates relying on fundraisers with questionable backgrounds. A fundraiser for Mitt Romney was recently suspended from practicing law. A backer of Barack Obama defaulted on loans. A bundler for Rudy Giuliani was once accused of sexual harassment. And a Clinton fundraiser was barred from contracting for violating labor laws.