Sarah Palin said President Barack Obama’s inaction over the escalating crisis on the southern border is grounds for impeachment. The Republican called for the action in an op-ed published on the conservative website Breitbart.

Calls for impeachment are coming from the President’s harshest critics on the right and have intensified over the new immigration crisis. However, such a step is highly unlikely, especially with Democrats currently in control of the Senate.

In the blistering op-ed, the former Alaska governor and 2008 Republican vice presidential nominee accuses Obama of intentionally allowing immigrants into the United States, hampering American job opportunities.

Palin’s pointed call for Obama’s impeachment adds a high-profile voice to the crowd of Republicans pushing for congressional action over what they view as an overreach of executive authority.