Tuesday evening's Democratic Party presidential debate saw some of its liveliest exchanges over what to do about big technology companies.

While all of the 12 candidates expressed concerns about big tech's outsized influence and propensity to serve as channels for misinformation and foreign influence on elections, their perspectives did vary.

Sen. Elizabeth Warren has already called for the breakup of Amazon (AMZN - Get Report) , Facebook (FB - Get Report) , and Alphabet (GOOGL - Get Report)  . She emphasized that no candidate who is serious about controlling outsized influence from big tech should be taking donations from the companies. "If we're going to talk about breaking up big tech companies...we should ask if people are taking money," Warren said.

Sen. Kamala Harris said Warren couldn't pick and choose which companies to break up. "The rule has to apply to Twitter (TWTR - Get Report) the same way it does to Facebook," Harris said.

Former congressman Beto O'Rourke said of big tech companies, "We treat them as a utility. They're more akin to a publisher."

Former housing secretary Julian Castro took aim at Amazon, saying it is "leveraging its size to put small business out of business and at the same time short-changing its employees."

Entrepreneur Andrew Yang argued that the way to control big tech's influence is for individuals to reclaim control of their personal information from tech companies. "Our data is our property," Yang said.

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