The leading figures were Vice President Pence, Secretary of State Pompeo and Senator Marco Rubio as well as hawks in in the National Security Council. A decisive moment came a week later in a White House meeting Jan. 22, the eve of protests in Venezuela, when Mr. Rubio along with Sen. Rick Scott and Rep. Mario Diaz-Balart, both Republicans from Florida, were called to a White House meeting with Mr. Trump, Vice President Pence and others.