"Drain The Swamp".
It's a noble idea, a great slogan, looks awesome on a t-shirt, and makes anyone who say sit sound like a reformer. But, as with most slogans it's inadequate in and of itself.
"Okay, great. Whoever you support in a Republican primary should be able to explain exactly HOW they plan on doing that, as a bare minimum. If they don't know how they're going to do it, then they're not going to be able to do it."
Matt Walsh
In our office we talk a lot about setting goals, accountability, and productivity. When we set goals we talk about SMART goals. Specific, Measurable, Achievable, Realistic, Timely. I'd argue that any candidate who says they'll "Drain the swamp." would need to be able to articulate all of the above in some detail. Obviously, it would be unrealistic to eliminate all of the entrenched bureaucracy in one term as president. But that's where Realistic and Achievable come in. I would expect any candidate to be able to explain where they would start, how they would proceed, and what we could expect after their first term. I'd also expect them to be prepared to get voted out if they don't achieve st least a significant part of their stated goals.
FOR EXAMPLE
Candidate X proposes the following.
1. Specific goal. "I will eliminate the Dept of Education during my first term."
2. Within 30 days of being elected, I will do X,Y, and Z. Within 60 days, I will do Q,R, and S. And so on.
3. Obviously this would be both Realistic and Achievable in 4 years.
4. Set out a timeline, and explain how those few functions of the dept would be handled after it has been disbanded.
The key is to not over promise and under deliver. Trump is a master at this. He WAY over promised in his 2016 campaign, and certainly under delivered on many/most of his promises. I believe that he was either deluded in thinking that he could actually do everything he promised, or that he knew he couldn't and promised it anyway. Likewise Biden has done the same things. It's time that the GOP set themselves apart by making specific, limited, promises and laying out detailed plans to accomplish those limited objectives, instead if promising the moon and stars and failing to deliver.
I don't think it's unrealistic to set higher expectations for the GOP, and make sure that those who don't meet those expectations, don't get reelected.