Here are several trillion dollars worth of lies told by Trump. After these, no, I don't believe him.
Promised a tax cut that pays for itself.
Promised to replace Obamacare with something better & cheaper.
Promised a trillion dollars worth of infrastructure spending.
Promised to reduce deficit and eventually balance the budget.
Promised to reduce prices of prescription drugs;
Promised to LOCK HER UP!
Promised to make Mexico pay for that wall!
Promised to release his tax returns;
Promised to cut the number of tax brackets, repeal the alternative minimum tax, eliminate the carried interest loophole, and allow individuals to deduct health care insurance premiums from taxes.
Those aren't little lies, those are BIG lies. Anyone who values truth should be holding Trump to account for them (remember, cons, you called Obama a liar when he promised you could keep your doctor & plan - and I did keep my doctor & plan).