Rep. Steve King, R-Iowa, Sunday accused President Obama of violating the Constitution and bringing on a constitutional crisis by going around Congress on immigration. King, in an appearance on "Fox News Sunday," said he doesn't want to talk about impeachment but Congress has to take a look at where "we draw the line."

King said Obama's efforts on immigration and his decision to delay the employer mandate in the health reform law show he doesn't honor the constitutional limits on his power.

"I think Congress has to sit down and have a serious look at the rest of this Constitution and that includes that 'I' word that we don't want to say," King said. "And I only say that now on this program, because I want to encourage the president, please don't put America into a constitutional crisis. Please don't do that. There's too much at stake in this country to be decided that you can take over the Constitution and write it at will."

He said Congress will be forced to act if Obama decides to suspend deportations of undocumented immigrants.

House Speaker John Boehner, R-Ohio, has said he plans to sue Obama over his use of executive power, upsetting the balance of governmental powers. However, he said last week the House has no plans to open impeachment proceedings, the Los Angeles Times reported.

Rep. Hakeem Jeffries, D-N.Y., appearing with King, said Republicans "are clearly taking us on a march toward impeachment.

"It really is time to get back to doing the business of the American people and stop the squabbling that is related to what seems to be hatred of the president of the United States coming from different quarters throughout the Congress," he said.