I voted "never" because there was no option for "unsure if it will ever happen".
But I like to take the long view, like in Arthur Schlesinger's cycles of US history:
[TABLE="class: grid"]
[TR]
[TH]From[/TH]
[TH]To[/TH]
[TH]Dur[/TH]
[TH]Type[/TH]
[TH]Name[/TH]
[/TR]
[TR]
[TD]1776[/TD]
[TD]1788[/TD]
[TD]12[/TD]
[TD]Lib[/TD]
[TD]Liberal Movement to Create Constitution[/TD]
[/TR]
[TR]
[TD]1788[/TD]
[TD]1800[/TD]
[TD]12[/TD]
[TD]Con[/TD]
[TD]Hamiltonian Federalism[/TD]
[/TR]
[TR]
[TD]1800[/TD]
[TD]1812[/TD]
[TD]12[/TD]
[TD]Lib[/TD]
[TD]Liberal Period of Jeffersonianism[/TD]
[/TR]
[TR]
[TD]1812[/TD]
[TD]1829[/TD]
[TD]17[/TD]
[TD]Con[/TD]
[TD]Conservative Retreat After War of 1812[/TD]
[/TR]
[TR]
[TD]1829[/TD]
[TD]1841[/TD]
[TD]12[/TD]
[TD]Lib[/TD]
[TD]Jacksonian Democracy[/TD]
[/TR]
[TR]
[TD]1841[/TD]
[TD]1861[/TD]
[TD]20[/TD]
[TD]Con[/TD]
[TD]Domination of National Government by Slaveowners[/TD]
[/TR]
[TR]
[TD]1861[/TD]
[TD]1869[/TD]
[TD]8[/TD]
[TD]Lib[/TD]
[TD]Abolition of Slavery and Reconstruction[/TD]
[/TR]
[TR]
[TD]1869[/TD]
[TD]1901[/TD]
[TD]32[/TD]
[TD]Con[/TD]
[TD]The Gilded Age[/TD]
[/TR]
[TR]
[TD]1901[/TD]
[TD]1919[/TD]
[TD]18[/TD]
[TD]Lib[/TD]
[TD]Progressive Era[/TD]
[/TR]
[TR]
[TD]1919[/TD]
[TD]1931[/TD]
[TD]12[/TD]
[TD]Con[/TD]
[TD]Republican Restoration[/TD]
[/TR]
[TR]
[TD]1931[/TD]
[TD]1947[/TD]
[TD]16[/TD]
[TD]Lib[/TD]
[TD]The New Deal[/TD]
[/TR]
[TR]
[TD]1947[/TD]
[TD]1962[/TD]
[TD]15[/TD]
[TD]Con[/TD]
[TD]Eisenhower Era
[/TD]
[/TR]
[TR]
[TD]1962
[/TD]
[TD]1978
[/TD]
[TD]16
[/TD]
[TD]Lib
[/TD]
[TD]Sixties Era
[/TD]
[/TR]
[TR]
[TD]1978
[/TD]
[TD][/TD]
[TD][/TD]
[TD]Con
[/TD]
[TD]Gilded Age II
[/TD]
[/TR]
[/TABLE]
The last three identifications are all mine, and the current Gilded Age has now lasted for 41 years.
I hated Ronald Reagan, but at least he wasn't a paranoid crook like Richard Nixon. George Bush I was likely the best Republican president of this era.
When Bill Clinton was elected, I thought that he would end this conservative period. But he screwed up in the gays-in-the-military thing, and he then spent several months developing some monstrously complicated health-care plan, only to whimper and meekly walk away. No releasing of preliminary drafts, no big PR campaign, nothing of the sort. Though he was almost a moderate Republican, the right wing hated him and was willing to deny its most cherished beliefs in doing so. Like being anti-employer and pro-government-waste about the White House travel agents. And being pacifists about his wars.
George Bush II was a hopeless simp, though he wasn't fundamentally nasty. Dick Cheney was a devious schemer, however.
Barack Obama was a decent person, but he was unwilling to confront Republican obstructionists until late in his presidency. He was desperate to make deals with the Republicans, even though the Republicans did not return his efforts and instead tried to obstruct everything that he tried to do.
Donald Trump was a horrible person, willing to do crude xenophobic and bigoted demagoguery. Then there were rumors of Russian connections to his campaign. His presidency has been one horror after another.
As to the Left, I was very disappointed in the failure of the Wisconsin Revolt. President Obama let it hang out to dry -- he never bothered to try to support it. I was also very disappointed by the failure of the Occupy movement. The Occupiers did not even try to find alternatives to their city-park campsites.
With the victories in the House last year, I have a little bit of hope. But I've suffered dashed hopes too many times.

Alexandria Ocasio-Cortez is a very promising political figure, but she might falter or get burned out or get co-opted or corrupted or suffer some other horrible fate. Fortunately, she has plenty of like-minded friends, friends including several fellow Congresspeople. She also has the support of some political activist organizations, and they seem intent on supporting additional candidates. Meaning that she does not seem to have the isolation that Bill Clinton or Barack Obama did.
But the moral ugliness in the Trump Administration does not seem to have provoked enough desertions from it or any serious backlash from Congressional Republicans. Mitch McConnell seems very content with enabling this administration, and many former Never Trumpers now seem hard to distinguish from Donald Trump's longtime supporters.