Maduro's opponents fan flames of Venezuela birther debate

A birther debate is heating up in Venezuela as President Nicolas Maduro's opponents seek to push the embattled socialist leader from office at any cost.

On Tuesday, the opposition-controlled congress began debating Maduro's "constitutional situation" in which lawmakers vow to present evidence that he's a dual Colombian citizen and therefore constitutionally ineligible to hold Venezuela's highest office.

The birther argument and allegations that Maduro has abandoned the presidency — basically that he's not doing his job — have been gaining momentum after the opposition last week declared itself in open rebellion and called for mass demonstrations over...