Kaitlan Collins jousted with former Donald Trump attorney William Brennan over the specifics over how prosecution star witness Michael Cohen was repaid by his future commander-in-chief boss for buying the silence of porn star Stormy Daniels ahead of the 2016 election. Collins confronted Brennan, who served as an esquire for Trump’s payroll corporation tax fraud case, about the circumstances involving Cohen’s payback. “Why did Donald Trump cut Michael Cohen 11 checks and sign them pursuant to an invoice that said it was because of a legal retainer?” she asked, noting that Cohen admitted in test…