Tonight on the Last Word: A House committee expects to receive Trump’s taxes this week. What is going to happen to Donald Trump when Congress sees his tax returns? Daniel Goldman and Tim O’Brien join Lawrence O’Donnell. Also, the Senate unveils a 2,700 page bipartisan infrastructure bill. John Heilemann and Steven Dennis discuss this huge accomplishment for Pres. Biden and Democrats. Plus, Republican Senator Lindsey Graham tests positive for Covid-19 and says he's sure his COVID symptoms would be much worse if he had not been vaccinated. Dr. Celine Gounder explains what is the risk for vaccinated Americas. And Jeffrey Sonnenfeld talks about how corporations that stopped making political contributions to Republicans who voted to overturn the election are doing great.