Byron Donald of Florida, on the record saying the border is closed under Trump and has been since he took office, is now insisting illegal immigrants are spreading measles in the US. Note, the incubation period for measles is days, in some cases 24 hours, so in order for that to be true these illegal immigrants had to cross the border they insist nobody is crossing. He specifically said ILLEGAL not just immigrants. He's also blaming Biden, again the period is days, if they crossed under Biden with measles we would have seen breakouts, but we didn't
Note what he is doing is taking a legit issue and lying about it. There IS an increase in tuberculosis in the US, partly because of anti vaxxers again, but partly due to the border. the incubation period for TB is years, in some case more than 10 years. Studies seem to indicate the spread of TB is linked to in part to immigrants and so it's fair to suggest Biden played a role in that.
But the republicans know the TB spike is nothing like the measles or ones they caused with RFK, so they're taking legit data about TB and using it to blame immigrants for measles