Boehner reiterated his opposition to the employer mandate, a provision of Obamacare which the president unilaterally delayed, highlighting the political awkwardness of the lawsuit for Republicans.
"I oppose the employer mandate in the president's health care law. The House of Representatives has voted to delay or eliminate it (and we will do so again if we prevail in court)," he wrote. "But it is the letter of the law that was passed by Congress and signed by President Obama. He simply cannot unilaterally rewrite it."
The full House is expected to vote this week to authorize the lawsuit after it was approved on a party line vote in committee last week. The language of the resolution leaves room for Republicans to sue over other administrative changes to Obamacare, legal experts said.