In 2018, the average case processing time by the US Citizenship and Immigration Services (USCIS) was 46% longer than in 2016, according to the American Immigration Lawyers Association (AILA). Compared with 2014, when Barack Obama was still the president, the average case processing time last year was 91% longer.
qz.com/india/1541313/visa-processing-time-for-h-1b-hopefuls-has-doubled-under-trump/amp/