Boebert said in a Facebook video that she intends to seek office in Colorado’s 4th Congressional District, which covers the Eastern Plains, currently represented by Republican U.S. Rep. Ken Buck. Buck said last month that he won’t seek reelection in 2024, due to the Republican Party’s support of former President Donald Trump and, what he called an embrace of conspiracy theories. He’s represented the district since 2015.
No it isn’t. The states’ job is to create and enforce their own laws that are not explicitly granted to the federal government, nor explicitly prohibited to the States, in the Constitution per the 9th and 10th amendments.
Basically, the Constitution isn’t an exhaustive list. If it isn’t mentioned, then the default is that the right is retained by the people.
Explicitly states that as long as it isn’t something explicitly granted to the Feds, or explicitly something the Constitution prohibits the States from (article II, Section 10 gives a list of things that the Constitution explicitly denies the States from having any power in), then the default is that the State controls it.
In this case, the qualifications of members of Congress are explicitly and solely granted to the federal government, through Article I, Section IV.
States themselves do not control Congressional elections. Anyone meeting the Constitutional qualifications (and filed all the correct Federal Election Commission paperwork, HAS to be allowed on the ballot.
And to your broader point, no they cannot just make things more restrictive. The Supremacy clause is explicit in that Federal law and the Constitution overrides ANY state law or restriction that is not what the Constitution itself states. You see state restrictions overturned by the Feds all the time because of this.