President Obama, tired of waiting for Congress to act on immigration reform, is currently exploring ways to address issues with Department of Homeland Security Secretary Jeh Johnson.

During an interview with MSNBC’s Chuck Todd, White House Press Secretary Josh Earnest explained that the Obama administration was getting impatient with Congress.

Earnest added that, although Obama was exploring executive action, it was “not a substitute for robust Congressional action” on immigration reform.

Obama has been heavily criticized after his 2012 executive decision to defer the deportations of some young illegal immigrants, which critics argue was a key incentive for more children to cross the border illegally.