Portland (US), Dec. 29 -- Maine's Democratic secretary of state on Thursday removed former President Donald Trump from the state's presidential primary ballot under the Constitution's insurrection clause, becoming the first election official to take action unilaterally as the US Supreme Court is poised to decide whether Trump remains eligible to return to the White House.

The decision by Secretary of State Shenna Bellows follows a ruling earlier this month by the Colorado Supreme Court that booted Trump from the ballot there under Section 3 of the 14th Amendment. That decision has been stayed until the US Supreme Court decides whether Trump is barred by the Civil War-era provision, which prohibits those who "engaged in insurrection" from...