I'm waiting to see the same comments here as I saw when we challenged the Muslim ban -- "Why is our state getting involved in suing the government?"  

Except in this case, Trump acted when he did because he wanted to 𝒇𝒐𝒓𝒆𝒔𝒕𝒂𝒍𝒍  DACA-challenging lawsuits by a number of red states.  He didn't want to aggravate his base.

Something tells me many of those same commenters would've 𝒃𝒂𝒄𝒌𝒆𝒅 those particular red state lawsuits rather than complaining about states sticking their noses into federal business.  

Seems like which side of the argument you're on, depends on whose ox is being gored.