Bernie Sanders, Elizabeth Warren vow to work with Trump

``"Let me be 100 percent clear about this: When President-elect Trump wants to take on these issues, when his goal is to increase the economic security of middle-class families, then count me in," the Massachusetts senator said. "I will put aside our differences and I will work with him to accomplish that goal. I offer to work as hard as I can and to pull as many people as I can into this effort. If Trump is ready to go on rebuilding economic security for millions of Americans, so am I, and so are a lot of other people -- Democrats and Republicans."''