The prospect of a military escalation — which the White House has played down, though not dismissed — looms. On Saturday, Guaidó seemed to nod in that direction as his aid gambit stalled. “Today’s events force me to make a decision: to pose to the international community in a formal way that we must have all options open to achieve the liberation of this country that is fighting and will continue to fight,” he tweeted.

On Monday, the Venezuelan opposition leader will join a meeting of regional leaders in the Colombian capital, Bogota, which will also be attended by Vice President Pence. The consensus that emerges there will shape the opposition’s actions.

“There is no question that a military intervention to resolve the Venezuela crisis is more plausible than ever,” Michael Shifter, president of the Inter-American Dialogue, a Washington-based think tank, said to The Post. “Guaidó’s insistence that ‘all options are on the table’ echoes President Trump’s words, first uttered in August 2017 and widely interpreted as serious consideration of military action.”