This thread is from a month ago or so, but the data is still valid. There has been a precipitous drop in new construction permits in St. Paul since last fall’s election put rent control in place.
This thoughtful article on rents in the Minneapolis and St. Paul area confirms that rents have only been easing up until 2020. The author believes rents have been on the decline since then.
The actual advertised median rents for one- and two-bedroom apartments are lower — in actual dollars — in 2022 than they were in late 2018. Three-bedroom rents went up 2 percent over the four years, while inflation went up 11 percent over the same time. These shifts started more than a year before the pandemic. “Post” pandemic increases look big due to the atypical and extremely low rents during summer 2020. But trends show that Minneapolis rents have simply returned to pre-pandemic levels.

This data is in high contrast to the inflammatory, high-rent-evil-landlord hype that was circulating prior to the elections. And despite this lengthy and analytical exposition of a responsive system, there is a parroting of the party line:
We also need more tenant protections, like just-cause eviction and rent stabilization. We need to ensure that every person has the income to afford a home whether from increased wages, making housing subsidy an entitlement or social housing. Minneapolis minimum wage hasn’t yet reached $15 per hour, and $15 is a long way from the NLIHC-calculated $17.27 housing wage needed to afford just a studio apartment in the Twin Cities.
Unfortunately, there is an audience for such questionable logic.