Seriously.

From the actual study:

Although the present study does not identify mechanisms underlying our findings, a growing body of evidence suggests that the circumstances surrounding the 2016 presidential election led to increased levels of psychosocial stress and anxiety among US immigrants and their coethnic family and community members.6,7 Moreover, prior research has suggested that uncertainty about the future of inclusive immigration policies and fear surrounding restrictive immigration enforcement are associated with poorer self-rated health,8 cardiometabolic risk factors,15 and inflammation,35 which may in turn contribute to increased risk for preterm birth.12 Changes in health behaviors, including accessing adequate prenatal care, may also be affected by immigration-related rhetoric, as suggested by a recent study among nearly 25 000 deliveries in Houston, Texas.16 Future research should investigate these potential mechanisms to uncover how the threat of punitive immigration laws and enforcement negatively affect population health outcomes, especially for pregnant women and their children.

The first sentence is telling because it points to these two references:

Pew Research Center. Latinos and the new Trump administration. Published February 23, 2017. Accessed June 17, 2019.

Pew Research Center. More Latinos have serious concerns about their place in America under Trump. Published October 25, 2018. Accessed June 17, 2019.

In other words, the growing body of evidence is …

Two polls.

I certainly don’t expect the media to question the veracity of any scientific nonsense that blames Trump for anything.  I would expect that editors and reviewers of scientific publications should know better than to publish drivel.

I’m not holding my breath on this.