The last solid Republican win was in 1988. Bush beat Gore because of some confused voters in Florida and in 2004 one swing state, Ohio.
That’s 28 years ago since a solid win, a generation.
Bush won reelection in 2004,by about 3 million votes in the popular vote, if I recall correctly. Was close but no doubt of the outcome. He won Ohio by about 100,000 votes. Not close enough to do Florida style recounts and court cases.
Well Obama didn’t exactly win landslides in his elections. In fact he was reelected in 2012,with a lesser percentage of the popular vote then his first election. 2016 is winnable for the GOP, but the GOP has to run against the Democrats and the media. And be able to react to media driven events such as Candy Crowley helping the Democrat in a debate or George Step. Planting absurd questions about states banning contraception.