Cuba announced on Monday that Cuban exiles will be allowed to invest in the country and run businesses, but that is "not enough," according to Rubio, who is himself of Cuban descent.
Cuba has an economy that doesn't work and a political system that can't fix it. They need to change dramatically.
Cuba was hit by a nationwide power outage on Monday, the latest in a series of outages in the economically vulnerable country as US sanctions and a blockade of oil from Venezuela have deepened the country's energy and economic crisis.
US President Donald Trump said last night that he believes he will have the "honor of taking Cuba," without elaborating.
What do you think?