Veteran Democratic Congressman John Conyers voiced some disappointment in President Barack Obama — and said he wants to help the leader of his party to do better. USA/

In a speech at the National Press Club on Monday, Conyers criticized Obama on a number of fronts — from his overhaul of the U.S. healthcare system and management of the wars in Afghanistan and Iraq to agreeing to Republican demands last year to extend tax cuts for the wealthiest Americans.

Conyers, the ranking Democrat on the House Judiciary Committee, was first elected to Congress in 1964 — three years before after Obama was born. He backs Obama, but says, “I just want to make him a better president.”

Conyers is not alone in his complaints. A number of Democrats in Congress have expressed frustration with Obama, particularly for what they describe as his failure to push harder on liberal issues.

“The recent debate on healthcare has allowed opponents of the new law to say we have gone too far — when the truth is we have not gone far enough,” said Conyers, a backer of “a single payer” approach that would have a greater government involvement in delivery of health care.