Here's an example of ever changing Political ideologies. It comes down to "what have you done for me lately"

Wikipedia:
Trump registered as a Republican in Manhattan in 1987 and since that time has changed his party affiliation five times. In 1999, Trump changed his party affiliation to the Independence Party of New York. In August 2001, Trump changed his party affiliation to Democratic. In September 2009, Trump changed his party affiliation back to the Republican Party. In December 2011, Trump changed to "no party affiliation" (independent). In April 2012, Trump again returned to the Republican Party.[3]

In a 2004 interview, Trump told CNN's Wolf Blitzer: "In many cases, I probably identify more as Democrat," explaining: "It just seems that the economy does better under the Democrats than the Republicans. Now, it shouldn't be that way. But if you go back, I mean it just seems that the economy does better under the Democrats...But certainly we had some very good economies under Democrats, as well as Republicans. But we've had some pretty bad disaster under the Republicans."[4] In a July 2015 interview, Trump said that he has a broad range of political positions and that "I identify with some things as a Democrat."[3]

During his 2016 campaign for the presidency, Trump consistently described the state of the United States in bleak terms, referring to it as a nation in dire peril that is plagued by lawlessness, poverty, and violence, constantly under threat, and at risk of having "nothing, absolutely nothing, left."[5][6] In accepting the Republican nomination for president, Trump said that "I alone can fix" the system,[7] and pledged that if elected, "Americanism, not globalism, will be our credo."[6] He described himself as a "law and order" candidate and "the voice" of "the forgotten men and women."[8] Trump's inaugural address on January 20, 2017 focused on his campaign theme of America in crisis and decline.[9] He pledged to end what he referred to as "American carnage,"[10][11] depicting the United States in a dystopian light—as a "land of abandoned factories, economic angst, rising crime"—while pledging "a new era in American politics."[9]

Although Trump was the Republican nominee, he has signaled that the official party platform, adopted at the 2016 Republican National Convention, diverges from his own views.[12] According to a Washington Post tally, Trump made some 282 campaign promises over the course of his 2016 campaign.[13]

In February 2017, Trump stated that he was a "total nationalist" in a "true sense".[14] In October 2018, Trump again described himself as a nationalist.[15][16]