fiscal stimulus package is the one thing that could put the stock market on an upward trajectory into the election, but some strategists say the odds of that happening are still rather low.

President Donald Trump, within hours Tuesday, both dashed hopes for a stimulus package by calling off administration talks with Democrats, and then rekindled them by tweeting about aid to airlines and other  smaller targeted packages.

The Dow was up 1.8% Wednesday after Trump triggered a sharp sell-off Tuesday. But that has not changed the dynamic for markets, and stocks are still expected to trade in a choppy, volatile fashion until the outcome of the election is clear.