Our politics reporter Kellen Browning walks through the four Senate races that progressive Democrats are closely watching in the upcoming midterm elections.

The transfer came a day after the news that the pro-Israel lobby was planning to contribute as much as $9 million to defeat the Democratic nominee for Senate.

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Senator Bernie Sanders of Vermont has made a point of investing in Republican-leaning states. He rallied in Tampa for Ms. Nixon, the underdog Democratic nominee for Florida Senate.

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Dr. Abdul El-Sayed of Michigan is the first Democrat running in a battleground Senate race to publicly call for a pause on artificial intelligence development.

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Dr. Abdul El-Sayed of Michigan is the first Democrat running in a battleground Senate race to publicly call for a pause on artificial intelligence development.

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Three months after a jarring summer candidate switch, some Democrats in the state are worried about the enthusiasm for their nominee, Troy Jackson, who is in a close race.

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