Can somebody explain the logic in that? How did the Democrats coerce Putin to attack Ukraine?
It was a part of the Obama foreign policy, he saw it as natural for local hegemons to exert control of their regions. That's why he was so soft on Russia, Iran, and China. He believed their domination of their regions would lead to an increased feeling of local security, thus acting as a stabilizing force globally.
Russia took back control of eastern Ukraine, and Crimea, then held a plebiscite where the vast majority voted to rejoin Russia. Obama, relying on the holy democratic process, pretty much did jack shit.
yada yada Victoria Nuland color revolution expert, yada yada Maidan coup, yada yada actor installed as President of Ukraine, yada yada massive payoffs to family members of high ranking democrats, ect.
Oh and Putin's red line was Ukrainian entry to NATO, which Vicky, and democrats, were pushing for amid their xenophobic othering of Russia is a classic fear-mongering power play.