Former Florida governor Jeb Bush on Tuesday knocked President Obama's executive action on immigration reform, accusing him of acting beyond his legal authority and deepening tensions with Congress.

“Last year, the president overstepped his executive authority and, in turn, hurt the effort toward a commonsense immigration solution. That’s not leadership,” Bush, who is considering a 2016 White House bid, wrote on Facebook. “The millions of families affected across the country deserve better."

Obama announced in November that the administration would give millions of undocumented immigrants relief from deportation, sparking an intense partisan fight over the president’s legal authority to do such a thing.  A federal judge in Texas blocked the action on Monday night, essentially delaying the new policy.

Bush has bucked members of his own party on immigration, expressing support for a reform plan that would give undocumented immigrants a path to legal status -- and inviting criticism from the right.

“Now, more than ever, we need President Obama to work with Congress to secure the border and fix our broken immigration system,” Bush wrote Tuesday.