So let’s drill it down...
Basic facts.
This year the Wisconsin government forecast a $2.2 Billion dollar deficit, that’s true.
However, by law WI must have a balanced budget, so the various departments and the legislature have undertaken to make cuts in order to balance the budget.
So the deficit will not materialise after the new budget is passed, but they have less to work with than projected previously, meaning cuts and stopping some programs/projects.
.
Now for opinion.
Outright lie? I don’t think so.
Until the new budget is enacted, technically WI does face a deficit.
Will that deficit be reflected in the new budget? Clearly not.
Was the previously projected surplus realised, no, clearly not.
Has Walker done some laudable things with regards to reform? Absolutely.
Have all of his projections for financial prosperity been realised yet? No. Just look the 90s. Clinton got credit for the Reagan reforms. It takes time to see results.
However, in 2014 Walker very public touted the coming surplus, and it disappeared. How and why it disappeared is a reasonable point of discussion.
Also, according to this link, it sounds like Trump is right on schools and Walker totally screwed them up, and Walker is totally in favor of Common Core. Trump is going to pick these guys off one by one until the GOP is completely embarrassed and destroyed.
"There was in early 2014 a projection of a $1 billion surplus heading into the 2015-’17 budget period. Late in 2014, there was a projection of a $2.2 billion shortfall -- the difference between expected revenues and the amount of money being requested by state agencies. But the shortfall was never a deficit -- and some of the surplus was consciously spent by Republicans, as tax cuts."