After questions about foreign clients and selling of access to the White House, former Donald Trump adviser Corey Lewandowski is leaving the lobbying firm he founded after the election.

Lewandowski said his partner and others at the firm, Avenue Strategies, sought foreign business in his name, without his knowledge. Negative publicity related to the solicitation of foreign clients and allegations of unregistered lobbying and selling White House access plagued the firm in recent days.

“The most important thing is my reputation,” he told Bloomberg, “and I’ve worked really hard in the face of adversity to try to be successful.”

Lewandowski said he was concerned that he had lost control of the firm after the allegations came to light, which led to his departure.

A Politico report found that an Avenue Strategies affiliate, called Washington East West Political Strategies, was soliciting business in Eastern Europe by offering access to the top ranks of the Trump administration.

Lewandowski said he had no knowledge of those activities, but chose to step down because of the “giant target on my back,” after his work on the Trump campaign. He said he has never lobbied or used his access to Trump associates to further the interests of his clients.