throw your hat into the ring
US /θroʊ jʊər hæt ˈɪntu ðə rɪŋ/
UK /θroʊ jʊər hæt ˈɪntu ðə rɪŋ/
1.
to announce one's candidacy for an election or competition
:
•
After much deliberation, she decided to throw her hat into the ring for mayor.
•
Several candidates are expected to throw their hats into the ring for the upcoming presidential election.