In 2009 when Obama became president, Arkansas had:
2 Democrat US Senators
3 of 4 Democrat US Representatives
Democrat Governor
Democrats holding all state executive offices
In 2017 when Trump became president, Arkansas has:
2 Republican US Senators
4 Republican US Representatives
Republican governor
Republican state senate
Republican state house
Republicans hold all state executive offices
I heard that Missouri is going through a similar transition — the only current Democrats are US Senator McCaskill and state auditor.
Winthrop Rockefeller would have been shocked, or he may have joined the Democrats in protest!