REUTERS/Joshua Roberts The US president's lawyer, Rudy Giuliani, has told Sunday night television that he didn't know if President Donald Trump talked with his former lawyer, Michael Cohen about the latter's congressional testimony. Then Giuliani added, 'so what,' implying the matter was of little import and less legal significance. However, the question is a critical one this week following an earlier BuzzFeed News report suggesting Trump had instructed Cohen to lie to Congress. WASHINGTON (AP) — President Donald Trump’s lawyer Rudy Giuliani left open Sunday the possibility that Trump and former personal attorney Michael Cohen might have discussed Cohen’s congressional testimony. But, he added, “so what” if he did?See the rest of the story at Business InsiderNOW WATCH: America is more politically divided than ever, and the government shutdown only makes that more apparentSee Also:The number of federal workers seeking unemployment benefits doubled in the first 2 weeks of the shutdown, and it's expected to keep rising10 of the biggest risks the world will face in 2019The government shutdown could cause an unprecedented mess for the Super Bowl in AtlantaSEE ALSO: Rudy Giuliani leaves open the possibility there may have been collusion between the Trump campaign and Russia