Update:
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Bullock should keep a senate run as his "reserve option" if he can't make it to the presidential nomination. He's probably the strongest Democrat to challenge Daines. However, he's one of the best candidates to beat Trump.
They're just in damage control mode. Tester was just teasing the person who gave him the question for asking something so silly. He said he didn't know first and asked if she wanted to bet $100,000. Then he smiled and said 'yeah he's running.' Translation for those who are comedically challenged: 'How should I know what someone else is doing two years from now? Haha' It was a joke, but he forgot that politicians aren't allowed to make jokes. Poor guy!
