I believe they have to report any gifts or campaign donations. They can't accept gifts of a "few hundred thou'. And even if they couldn't it wouldn't show up in IRS records.
Let the IRS handle taxes - politicians have no business in anyone's taxes.
who said anything about gifts or campaign donations?
Hilary got $250,000 a pop multiple times for short talks from Goldman Sachs, between her Sec of State gig and her prez run. (you think she's actually that good a speaker).
Bechtel could offer Pete Butt $750,000 in consulting fees regarding highway construction bidding.
Lloyd Austin could get $750,000 in "consulting fees" each from Northrup Grumman and Raytheon..
or $300,000 a yr from each for serving on their board.
Clarence Thomas could get $200,000 for a speech to an adoption agency or a pediatrics practice..
or Elena Kagan the same for a speech to Planned Parenthood.
China could give "the big guy" his cut of a $1.5 bil investment deal.
Saudi Arabia or Iran could buy $70 mil in condos at premium prices from The Donald, or rent the top floor of a Trump building or hotel for a yr or 4. (or 12).
Ronald Reagan could, (and did), get $1 mil for one speech from Japan. (who benefited greatly from Reagan's trade policies).
laundering bribes through "legit" business arrangements is neither difficult or new.
if declared and taxes paid, the IRS has no issue, regardless of how shady looking.
the source of the "income" isn't the IRS's concern, as long as it's legal.
and quite easy to "legalize" bribery with consulting or real estate purchases or book deals or speeches, (or sales of paintings), or board seats, or 100 other creative ways, all of which are perfectly legal sources of income.
that said, for obvious reasons, politician's and regulator's and Fed judges taxes are absolutely the citizenry's business. thus congress's as well if something doesn't look right..