*[[Open borders]] and mass immigration<ref>Munro, Neil (April 22, 2019). [https://www.breitbart.com/politics/2019/04/22/immigration-funds-big-government-says-2020-democrat-buttigieg/ Immigration Funds Bigger Government, Says 2020 Democrat Buttigieg]. ''Breitbart News''. Retrieved April 23, 2019.</ref> | *[[Open borders]] and mass immigration<ref>Munro, Neil (April 22, 2019). [https://www.breitbart.com/politics/2019/04/22/immigration-funds-big-government-says-2020-democrat-buttigieg/ Immigration Funds Bigger Government, Says 2020 Democrat Buttigieg]. ''Breitbart News''. Retrieved April 23, 2019.</ref> |