Pivotal Missouri Senate Race Starts

    (AP Photo/Charlie Riedel, File)

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    A key Senate race is beginning to take shape in Missouri.

    Fox's Jared Halpern has more from Capitol Hill:

    Missouri's Republican Attorney General Josh Hawley will run for Senate next year challenging Democrat Claire McCaskill.

    McCaskill is one of 10 Senate Democrats running for re-election in a state won by President Trump last year.

    Hawley is 37-years-old and serving his first year in elected office. In a video announcement, he says he did not plan on a Senate run, but believes we have to do all what we can to win a better future.

    Missouri Democrats have expected Hawley to enter the race, for months accusing him of using the attorney general's office as a political stepping stone.

    On Capitol Hill, Jared Halpern, FOX News.

    Follow Jared Halpern on Twitter: @JaredHalpern