What a load of rubbish, Anne Diamond. Are you rewriting history now? At least study the subject before making uninformed comments. Putin took over Crimea in 2014 during the Obama-Biden administration. 
Trump took office in January 2017, and there was no invasion until Biden took office in 2021. Russia invaded Ukraine again in 2022.
Trump imposed the toughest sanctions on Putin, unlike the weak Obama-Biden administration.  
@portilloandhen