Kentucky Senator Rand Paul has warned that the Affordable Health Care Act must be replaced immediately, otherwise Republicans will be blamed for a continuing and worsening mess as Obamacare further unravels.

Writing for  Rare, Paul urged that it would be "wise" to have a replacement plan in place before repealing the healthcare legislation.

"If Congress fails to vote on a replacement at the same time as repeal, the repealers risk assuming the blame for the continued unraveling of Obamacare." Paul wrote.

"For mark my words, Obamacare will continue to unravel and wreak havoc for years to come," he added.

Paul noted that a "partial repeal" would "only accelerate the current chaos."

"My fear is that if you leave part of Obamacare in place… then you will see an acceleration of adverse selection and ultimately mass bankruptcy of the healthcare insurance industry," he wrote.