One likely candidate: Natasha Trethewey. Others: Mary Szybist, C.D. Wright, Mark Doty, Ai, Juan Felipe Herrera, Kay Ryan, Rita Dove, Carolyn Forché, Mark Jarman.
You could make a whole list, several times as long, especially if you emphasize each as representative of a trend or circle: Catholic poetry, Latino poetry, Poetry of Witness, etc.
Good luck trying to pick two!
Best,
Bill
(just reread the original posts. If I had to pick only two? Carolyn and Juan.)