Furthermore, most Americans don't even know what "Common Core" actually is but seem to hate it anyway:
"December 2014 national survey from Fairleigh Dickinson University found that two-thirds of Americans erroneously believe that sexual education, global warming, evolution, and/or the American Revolution are included in the Common Core.Only about one in ten Americans know these four subjects are not part of the Common Core (though the Common Core standards do require high school students to read the Declaration of Independence, and the Preamble and Bill of Rights of the U.S. Constitution). Other surveys show that as recently as August 2015, a majority of voters mistakenly believe that the U.S. Department of Education or Secretary of Education Arne Duncan wrote the Common Core standards. Ohio’s governor John Kasich, a 2016 GOP presidential candidate who supports the Common Core, told the conservative news website, The Blaze: “When you study the issue, you separate the hysteria from the reality.”
The reality is this: The Common Core State Standards, as their name specifies, are state standards in English Language Arts and mathematics, created in a collaborative effort by the National Governors Association and the Council of Chief State School Officers, with input from educators. It bears repeating that the federal government had zero involvement in drafting the Common Core State Standards—it neither wrote, paid for, or participated in the development of the standards."
Common Core also had widespread bipartisan support in most states and an MOA was signed by a majority of GOP governors in 2009 where states would adopt the Common Core initiatives within three years.
But then Obama got attached to it and Common Core became a rallying cry for conservatives:
"The anti-Common Core movement only took hold among conservatives nationwide after anti-federal Tea Party activists falsely attacked the Common Core as a “national curriculum” and a “federal takeover” of what is taught in school. Both of those claims are attributable to myths, misunderstanding of the Common Core, or reflexive mistrust of the Obama administration."
Maybe we can just repeal it though, right Ted Cruz?
"Senator Ted Cruz, meanwhile, in an apparent doubling down of his efforts to repeal Obamacare, has made the nonsensical pledge that he intends “to repeal every word of Common Core.” (There is no federal statute to repeal that delineates any of the wording of the Common Core State Standards.) And in his recent retreat from the Common Core, New Jersey governor Chris Christie objected that the standards were adopted “200 miles away on the banks of the Potomac River.” Christie’s statement would have been accurate if he had referred to the banks of the Delaware River in Trenton, the New Jersey state capital. The New Jersey State Board of Education, not the U.S. Department of Education, adopted the Common Core State Standards, not once but twice—first on June 19, 2010, and then reaffirmed New Jersey’s adoption of the standards on February 12, 2014."
If you don't like Common Core that's fine, but let's be clear on what exactly Common Core is, who was in favor of passing it (seemingly a lot of people on both sides of the aisle), and when/how the tide turned on Common Core.