Pro-Trump group ad seeks to pit Michelle Obama against Clinton

By Ginger Gibson WASHINGTON (Reuters) - A Super PAC backing Republican Donald Trump is buying TV airtime in parts of Florida beginning this week for a commercial aimed at using first lady Michelle Obama’s words against Hillary Clinton to erode the Democratic presidential candidate's support from women voters in the battleground state. The ad – which the Super PAC has already been running online – shows Michelle Obama in 2007 saying, “If you can’t run your own house,