Another Indicator: Swing-State Senate Races
"There are seven presidential swing states, five of which also have U.S. Senate races. That’s important because Senate races, like the presidential race, are statewide. While polling indicates that Democratic presidential nominee Kamala Harris and Republican presidential nominee Donald Trump are essentially tied or close to it in those states, the Democratic Senate candidates are leading in all five states, and in some cases by a lot.
"To put it simply, if the swing-state Democratic Senate candidates win by anywhere near their current margin, Trump will likely lose those states — and the election." (Source)
"There are seven presidential swing states, five of which also have U.S. Senate races. That’s important because Senate races, like the presidential race, are statewide. While polling indicates that Democratic presidential nominee Kamala Harris and Republican presidential nominee Donald Trump are essentially tied or close to it in those states, the Democratic Senate candidates are leading in all five states, and in some cases by a lot.
"To put it simply, if the swing-state Democratic Senate candidates win by anywhere near their current margin, Trump will likely lose those states — and the election." (Source)