The short answer
The study in question (Van Hiel et al. 2019) has been published in a reputable peer-reviewed journal. It presents empirical support for the hypothesis that emotional abilities negatively correlate with right-wing attitudes. This answers the question in the title.
The question body also asks about the link between cognitive abilities and ...
Independently, Pew has discovered that a greater percentage of Democrats believe in astrology than Republicans:
They include details on their survey methods. They did provide a definition of astrology in the survey: "that the position of the stars and planets can affect people’s lives". This may rule out people confusing astronomy and astrology.
Here are the relevant paragraphs from the intro to the paywalled paper justifying the first line of the abstract:
Over the years however, it has been acknowledged that right-wing
authoritarianism is only one indicator of right-wing attitudes
and that such attitudes can be arranged according to two
broad dimensions (see, Duckitt & Sibley, 2009; ...
The linked paper was written to
challenge two of the most common assumptions of political psychology: (1) that a belief in astrology is such a good indicator of conservatism that it is appropriate to use as a measure of conservatism itself; and (2) that Republicans and conservatives tend to hold views opposing science.
On the second point about ...
There is no date on when the claim was for or when it was made, so it is impossible to know if the Obama percentage is correct at whatever time its author made them.
But based on the entire two terms of both presidents and according to Cleveland.com:
George W. Bush spent some part of 1,020 days away (35%), including 149 days at Camp David.
There have been about 50 studies of sex and age correlations in EI metrics.(e.g., Day & Carroll, 2004; Lumley et al., 2005). Even so, scientists cannot agree if the variance is 1% or 4% for sex difference, and 3% or 15% for age difference.
Age varies EI more than sex. There have been comparisons of EI scores of racial groups in the US.
Studies suggest ...