>Don't you think there is some irony in a tax dodging billionaire who doesn't need the money and will probably make a lot of money out of being president claiming the moral high ground like this over politicians who may actually need the money and who pay their taxes ?

Tax dodging ? Loaded vocabulary...
Pretty certain he was audited regularly - he may have used unusual tax rules, but at that level agreement is reached between IRS and tax lawyers.
If the IRS agrees without Trump bribing those deciding on his return, it is not his fault.