BRIANNA KEILAR, CNN HOST: A short time ago, the Supreme Court heard arguments for a case that could directly impact the Russia probe and President Trump's pardon power. At the center, the double jeopardy exception that allows federal and state governments to prosecute suspects for the same crime. Joining me now, CNN Supreme Court reporter, Ariane De Vogue. Give us more details about the case. Even though the Trump situation is not the point, it could be affected.</s>ARIANE DE VOGUE, CNN SUPREME COURT REPORTER: Absolutely. It's about the double jeopardy clause. An individual can't be tried twice for the same offense. There has been an exception and an individual can be tried twice if it's in state and federal court. The Supreme Court allowed that and the government, the Trump administration and the Obama administration allowed it. This case went after that exception. Some say that leads to harassment of defendants. Even Ruth Bader Ginsburg said it's a double whammy, you can be tried in both places. Here's the connection to the Mueller investigation. Look at Paul Manafort. He has been tried of a federal offense and the president might pardon him. The president hasn't said he won't. If the president did and the Supreme Court were to throw out the exception, could a state go after him? That's the question and the connection here. I don't want to overplay it and say this was a case about the Mueller investigation. But it's one of those interesting things. The Trump administration didn't ask for it, but it could benefit somebody like Manafort at the end of the day.</s>KEILAR: No doubt it's on his mind. He's probably keeping an eye or those close to him are keeping his eye on the Supreme Court today. Ariane, thank you so much for that. The Bush family is saying their final goodbye today in the late president's adopted home state of Texas. The family set to board the Bush 4141 train any minute.
"Double Jeopardy" Case May Impact Trump's Pardon Power