For starters, Trump has a long time cozy relationship with the Clintons. A quick Google search will net you dozens of articles/photos of them together - including weddings.
I have seen little on Trump's desire to cut spending. Instead I have read article after article of his plans to "borrow our way out of debt" to stimulate growth, and if things collapse, we'll just negotiate our way out of debt.
During a 2004 CNN interview Trump said, “I probably identify more as a Democrat". During the same interview he said, “It just seems that the economy does better under Democrats than the Republicans”
Until 2010, Democrats have received the bulk of his donations.
In 2007, he said of Hillary Clinton (who was looking to run in 08'), “Hillary’s always surrounded herself with very good people. I think Hillary would do a good job”
According to the Clinton Foundation's nonprofit records, Trump has given between $100,0001 and $250,000 to the Clinton Foundation.
On four separate occasions, Trump has donated to Hillary Clinton, in 2002, 2005, 2006 and in 2007.
Trump also gave to Clinton's Senate campaign indirectly, due to a $125,000 donation from Trump to the Democratic Campaign Committee of New York.
In the past, Trump has been a vocal supporter of nationalized health care .
In Aug of last year, he supported Canada's single payer system.
Trump praises Canadian healthcare
Trump supports higher taxes - He has also supported a 14.25 percent wealth tax beyond the hike in income taxes. That tax alone would have been the
largest tax increase in history.
I do not trust him when it comes to guns. In 2000 he supported a ban on "assault weapons"
Donald Trump in 2000: “I Support the Ban on Assault Weapons”
In the end, Trump is as much a politician as Bernie, Cruz, or Hillary. I have seen numerous instances where his message changes depending on the audience he is speaking to. He is very good at reading the tea-leaves and knowing what to (or not) say.