Yes, in my lifetime we've seen two great Republican presidents, Reagan & Trump**, though it's a bit early to say exactly how great Trump can make America.
So how long before we see another such?
I have no idea, just pray it's not so long it's too late.
Important also to remember that Democrats live for government, since they don't believe in anything or One higher, they worship ever bigger government.
Political victory or defeat, doesn't matter to them, their goal is constant: more government.
When Democrats think of government, they think community action & welfare, punish "the rich" to support their voters.
By sharp contrast, conservatives mostly just want government out of their hair, as much as possible.
When we think of government it's of law enforcement and national defense, which we'll willingly serve, but otherwise, the less government the better.
So when government is in good hands, we just want to get on with life.
That makes the Left a constant force for ever bigger government, conservatives only occasionally roused enough to push them back.
The results are what we see...
** I'd also defend Eisenhower & Nixon, up to a point, and even the Bushes as good men, possibly in over their heads...
And I even liked Ford, well deserves his aircraft carrier class.
Democrat Kennedy I didn't like at all at the time, today fell somewhat better about, especially compared to today's Dems.