That was a response to a hypothetical question. Someone asked Trump whether,
in the case of abortion being illegal, women who sought one ought to be punished, and he said that it seemed like the case to him.
Then the media turned that into TRUMP WANTS TO PROSECUTE WOMEN WHO HAVE AN ABORTION.
And everyone wonders why mainstream news is rapidly loosing credibility.
'In fairness to Trump, the question was very difficult to answer given its largely rhetorical nature (especially given that it has no "right" answer, and any answer would inevitably disappoint a large segment of the audience).
Donald Trump responded to a question by saying there should be "some form of punishment for the woman" who obtained an abortion if the procedure were illegal, but that answer appeared to be one made in the context of a hypothetical discussion about bans on abortion that do not currently exist. Trump did not state that women should be subject to punishment for having abortions under the law as it stands, nor did he voice a forceful opinion without extensive wheedling from Matthews.
The scenario in which Trump's remarks occurred is often presented with the stated intent of prompting abortion opponents to consider the full extent of their position rather than to elicit an honest answer. Trump didn't appear to have any position on hypothetical consequences for abortions were they outlawed before the question was asked, and he made several attempts to dodge the thread of the discussion (but was pressed for an answer by Matthews). Since the clip began circulating, the Trump campaign had made multiple attempts to clarify his position on abortion, and we were unable to locate any prior statements from Trump proactively suggesting that women who had abortions should be punished.'
Donald Trump Supports 'Some Form of Punishment' for Abortions : snopes.com
If this reveals anything about Trump, it's that he doesn't often think about banning abortion as an actual, tenable policy, which is the exact opposite of what the media usually implies.
He has also revealed his list of SCOTUS appointees, all of which would overturn Roe V. Wade given the opportunity.
Donald Trump unveils his potential Supreme Court nominees - CNNPolitics.com
If Trump is elected we will have the most far right court since the early 30s.
He won't be able to get those people through confirmation hearings. This is the perfect politician's promise. 'Hey guys, I'll put originalist hardliners in, it will be GREAT.' Later on, 'Ugh, I really tried, but the terrible Democrats are giving me such a hard time so I need to cut a deal.' *Trump appoints the moderate candidates that he would have preferred to select in the first place, his pandering to the base seems genuine, and his opposition takes a hit while he looks magnanimous.*