Trone believes illegal immigrants deserve the same rights as U.S. citizens under the Constitution.
He advocates for welcoming DACA recipients, TPS beneficiaries, and undocumented migrants as citizens.
Trone voted against the bipartisan Laken Riley Act, which aimed to arrest and detain illegal immigrants convicted of certain crimes.
He signed a letter urging the closure of illegal immigrant detention centers despite recent incidents involving illegal immigrants.
He is expected to face former Republican Governor Larry Hogan in the general election, with polls suggesting a close race.
Trone faces a competitive Democrat primary field but holds a significant fundraising and polling advantage.
Election analysts rate the Senate race as "likely" Democrat, but Hogan's high name recognition and approval rating could challenge Democratic control.