U.S. Rep. Haley Stevens launched her U.S. Senate campaign on Tuesday — joining a growing crowd of candidates vying for outgoing Sen. Gary Peters' open seat.

The Michigan Democrat is the fourth well-known candidate to join what is quickly becoming one of the nation’s most-watched Senate races, alongside Democrats Dr. Abdul El-Sayed — the former director of Wayne County’s Department of Health, Human and Veterans Services — and State Sen. Mallory McMorrow. Former U.S. Rep. Mike Rogers is the only Republican in the race so far.

Peters' retirement announcement has caused a frenzy among Democrats, who hope to hold onto the seat to avoid expanding Republicans' 53-47 Senate majority in a battleground state Trump won in November.

Stevens joined The Metro on Thursday to talk about her Senate campaign and what motivated her to run. 

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