Rudy Giuliani on Sunday said President Trump’s explanation for a statement on the controversial 2016 Trump Tower meeting has repeatedly changed because “our recollection keeps changing.” “This is the reason you don't let the president testify. Our recollection keeps changing, or we're not even asked a question and somebody makes an assumption,” Giuliani told ABC News’ This Week. Giuliani’s comments came after it was revealed that a statement released by Donald Trump Jr. to explain his and other Trump aides’ meeting with a Kremlin-linked lawyer ahead of the election was actually dictated by Trump—something the president had earlier denied. The Trump Tower statement is now a central focus of special counsel Robert Mueller’s probe into whether the president obstructed justice, as it deceptively claimed the meeting focused on U.S. adoptions of Russian children. In fact, the meeting was arranged on the assumption Trump Jr. and other members of the Trump team would receive damaging information on Hillary Clinton.