Wisconsin Gov. Scott Walker, in the lead-up to an expected presidential bid, is continuing a push to align himself with the most conservative elements of the Republican Party, writing in an email to supporters on Monday that the United States should move forward with “bold conservative reforms to improve health care,” in place of the Affordable Care Act.

The ACA, despite concerted efforts by congressional Republicans and GOP-controlled state legislatures to undermine the law, has added 16.4 million people to health insurance rolls since October 2013.

Walker’s email, written on the five-year anniversary of the ACA, also known as Obamacare, lambasts the health-care reform law and President Obama (emphasis his):

Obamacare gets a failing grade and for once…just once…I wish President Obama would admit that he was wrong. We told him so but he refused to listen.

President Obama is turning the most advanced and successful healthcare system in the world upside down.

[…]

Five years into this policy debacle, the American people are saying, “So Far, So Bad.”

The facts tell a different story. Not only have millions of citizens gained access to health insurance, but hospital costs have shot down by 20 percent across all states, and by 26 percent in states that have expanded Medicaid—a key element of President Obama’s health-care law.

What’s more, Americans’ opinion of the law is becoming more positive. Forty-one percent of Americans now say they hold a favorable opinion of the law, compared with 43 percent who say they oppose it. That share of people with favorable views is the highest that number has been since the law was signed, and it continues to increase.

Conservative state legislatures have proposed myriad policies meant to chip away at the ACA. Missouri lawmakers, for example, considered a bill stating that residents would not be compelled to purchase health insurance under the Affordable Care Act, in contradiction to the federal law’s insurance mandate that was upheld by the Supreme Court.

“The Affordable Care Act has been the subject of more scrutiny, more rumor, more attempts to dismantle and undermine it than just about any law in recent history,” President Obama said in a statement Sunday. “It’s time to embrace reality.”