B. BALDWIN: Just about the bottom of the hour. You are watching CNN. I'm Brooke Baldwin. An unusual memo from Hillary Clinton's campaign is sending ripples across the trail today. Bottom line, they are saying there is no hope for Bernie Sanders. This is a part of it -- quote -- "With a pledged delegate lead of more than 180 and our momentum on our side, we anticipate building on this lead even further, making it increasingly difficult and eventually mathematically impossible for Senator Sanders to catch up." Let me bring in Democratic Senator Tammy Baldwin of Wisconsin. Senator, great to have you on.</s>SEN. TAMMY BALDWIN (D), WISCONSIN: It's great to join you.</s>B. BALDWIN: We know you have endorsed Hillary Clinton.</s>T. BALDWIN: Yes.</s>B. BALDWIN: And let me ask you say -- let me ask you just straight up, is it time for your Senate colleague Bernie Sanders to just drop out of this race?</s>T. BALDWIN: You know, the primaries on both sides still aren't over. But I thought that Hillary had a huge, huge step forward last night with the victories in multiple states
? Interview With Wisconsin Senator Tammy Baldwin