Conservative Wall Street Journal columnist Peggy Noonan said congressional Republicans will be unable to pass any new healthcare legislation without Democrats and that any successful bill will tilt left.

"Democrats have to be part of fixing ObamaCare," Noonan wrote in an op-ed published Thursday night. "And though they should be in a weak position, having lost the congressional majorities and the White House, they're holding strong cards. The Republicans have crashed and burned twice, and there's no reason to think they'll magically succeed next time. Health-care reform will have to come from both parties or it will not be accepted by America."

Republicans have so far been unable to unify behind a single bill that would "repeal and replace" Obamacare, a key campaign promise from the GOP at every level of the federal government.

Arizona Sen. John McCain was viewed as a key vote in both attempts this year and twice he has opposed the Republican-backed bills, for, he said, excluding input from Democrats.

"The path to a new health-care law runs through the Democrats," wrote Noonan. "The path to a bill better than ObamaCare — and it would have to be bad indeed to be worse than ObamaCare — runs through the Democrats. Changing one-sixth of the American economy cannot be successfully done without them."