Lawrence: Not one person who heard Trump's $5,000 election offer believes he means it

Tonight on The Last Word: Trump promises $5000 payments if the GOP wins midterms. Plus, Helena Foulkes wins the Democratic primary in Rhode Island. Also, Texas GOP candidate Brandon Herrera faces scrutiny for past derogatory comments. And Nepal's flood recovery is set back by Trump's aid cuts.  Rep. James Walkinshaw, Helena Foulkes, Katy Padilla Stout, and Dr. Atul Gawande join Lawrence O'Donnell.