Can the star Regulus from the constellation Leo be seen from Chicago, Illinois or the Philippines?

Question

Regulus is a star part of Leo, supposedly the brightest in that constellation

Answer 1

Sure.  Leo is in the West near after sun set.

Answer 2

Yes, it can be seen easily from both places.  Right now it's getting pretty close to being in line with the sun, but in a few months it will be back among the stars of the night sky.

And yes, it is the brightest star in Leo.