Tonight on the Last Word: The IRS says 88 percent of families will receive a bigger child tax credit. Also, Joel Greenberg, a former Florida Republican county official and friend of Matt Gaetz, pleads guilty to six federal crimes. Plus, Maricopa County GOP officials condemn election lies and demand end to Arizona “audit.” Joe Biden voices support for the Israel-Hamas ceasefire. And Bill Russell is being inducted into the Basketball Hall of Fame again. Gene Sperling, Rep. Rosa Delauro, Andrew Weissmann, Stephen Richer and Ben Rhodes join Lawrence O’Donnell