When even a key architect of Obamacare says the law’s implementation will resemble a “train wreck,” it is clear that its biggest remaining supporters need to finally level with the American people about what’s in store — starting with President Barack Obama.

The president must step into the breach and explain to the public that skyrocketing premiums and a raft of new taxes, penalties and fees are coming their way.

It may not be easy, but the president has a responsibility to explain as frankly as possible what this law will mean — before its major components take effect. He could start by delivering a major address, just as he did to push the law’s passage, laying out exactly what Americans can expect. He should also instruct his Cabinet secretaries to explain what this could mean as well. Families and businesses across America need time to prepare — and that means they need to know the facts.

Here are just a few we already know:

For many families and individuals, especially younger Americans, the law will lead to increased health insurance premiums. These have already gone up $2,370 per family since Obama took office, not down by $2,500 as he promised. And this is before most of Obamacare’s most costly mandates have even taken effect.

For many business owners, Obamacare will mean a crushing tower of red tape, demonstrated by the nearly 20,000 pages of regulations already issued. Employers have already planned layoffs due to uncertainty surrounding this law, according to the Federal Reserve. Obamacare could result in up to 800,000 fewer jobs, according to some estimates.