There are 4 different judges that signed off. All 4 are republican appointed judges.
Contreras was appointed by obama.
https://theblacksphere.net/2017/03/plot-thickens-guess-appointed-fisc-judges-authorized-wiretaps/
William Curtis Bryson .... Clinton
Jose Carbenes .... 1st appointment by Carter to US Dist Court in Connecticut ... 2nd Appt to Appeals Court by Clinton ... put on FISC by Roberts(no better than any of the liberals)
Richard Tallman .... Clinton
Contreras ... Obama
One of the Democrats’ main tactics is to sheep-dip their political moves using a ‘friendly Republican’. Mueller, Comey, McCain... the list is extensive. Then the Media can attach their favorite word, “bi-partisan”.