Rep. Adam Kinzinger, R-Ill., on Sunday said he had offered the White House his help to rally support for a strike on Syria but had been ignored.

“A week and a half ago my office actually reached out to the White House and said ‘we support the strike on Syria, we’re going to help you round up support if you need it,’” he said on ABC’s “This Week.”

“I haven’t heard back from the White House yet — I haven’t heard back from anyone,” he continued. “I don’t even know who my White House liaison is, who’s supposed to be creating this relationship.”

Lawmakers are weighing President Obama’s request to authorize a military attack on Syria after that country’s leader Bashar Assad used chemical weapons. The administration though faces a tough fight to win the votes needed, however, with polls showing the public opposed and both Democrats and Republicans expressing skepticism about Obama’s policies.

Even supporters of the president’s policy though say that he has failed to make the case or do enough to sway support.

Kinzinger said Obama was right to want to punish Assad, but that “it’s going to be very difficult for him to get votes.”

“He’s trying to build a relationship with Congress and there’s a trust deficit,” he added.