That is always the case. It's actually a critical design flaw in our system, depending on how you look at it. Observe:
GOP Example
Trump passes a new tax policy. The very next Democratic administration will overturn it. Probably in a drastic way. His change was drastic, and the reversal will be drastic.
Democrat Example
The Democrats passed Obamacare, and the GOP did everything possible to sabotage it. I don't like Obamacare, as I want a universal healthcare system like every other developed country on the planet (literally), but it was still sabotaged. A group of 40 congressmen (20 Dems, 20 Republicans) got together with ways to fix Obamacare.
- Provide mandatory funding for "cost sharing reduction" payments to insurance companies to hold down out-of-pocket costs such as deductibles and co-payments in Obamacare plans
- Create a stability fund that states can use to reduce premiums and limit insurer losses, especially for people with pre-existing conditions
- Change the mandate that employers provide coverage to apply only to companies with 500 or more employees, compared with the current 50-employee threshold, and define a full-time workweek as 40 hours, up from 30 hours
- Repeal the 2.3% sales tax on medical devices
- Modify sections of the Affordable Care Act to make it easier for states to innovate and enter into compacts to allow for the sale of coverage across state lines
- Offer Health Savings Accounts through the ACA
But the GOP doesn't want to fix Obamacare, they want things to get worse so they can put it back the way it was.
If you legit wanted to make things better, you would implement those fixes... Then assess. Then you implement more fixes... Then assess. Rinse, wash, repeat. You cant pass massive legislation without some problems.
GOP Example
The GOP, under Bush, banned federal dollars from being used in Stem Cell research. When Obama came into power, he overturned it.
Democrat Example
Democrats eased restrictions on Cuba.... the GOP put them right back on.
We lack a national direction, consistency, etc. And because the sides are so opposite, every election cycle swings things hard in another direction, only to reverse after the next election cycle.
A friend of mine once asked me..... "What is your biggest fear with universal healthcare?"..... My answer was "sabotage".... It will be underfunded, cut at the knees... line by line, at every opportunity.
The only reason the GOP hasn't done that with Social Security fully yet is because people are so used to it now they can't take it away. They hate it, but it's so popular. They will try to let it fail on it's own, even though there are easy fixes for Social Security. They just don't want to fix it.