gacan assure you we do it gythout regards to political ideology. >> reporter: democrats pushed back on accusations of political bias. >> if you're getting bad press articles and bad search results, don't blame google or facebook or twitter. consider blaming yourself. >> reporter: today's hearing comes as giant tech companies nye coming under increased scrutiny by congress, concerned n out silicon valley's growing concentration of power, especially google's. with billions of queries made each day, nearly 90% of all internet searches are on google platforms. they spent more than $18 billion lobbying congress in 2017, that's more than any other >>mpany. in glor: nick, it's always interesting to see how much ompresentatives know or don't know about some of these ngbjects in these hearings. did congress land any punches today? >> i don't think so. sundar handled himself well, and a lot of times representatives didn't know how to get at the hardest question twice they held up iphones, which are made by apple, not by .oogle.