I'm thinking that ANY district with a Dominion Voting System, let alone ES&S and others, cannot be election certified.

Again, in researching Iowa, although District 3 doesn't stand out on Dominion, it has it. It's getting down at this level that may show the extent of the potential fraud at Federal, state, county, and local levels.

Iowa has 4 congressional districts. Curiously, although Iowa's senators are Republican, 3 of 4 congressional districts are Democrat.

Iowa Congressional District 3

https://ballotpedia.org

Iowa's_3rd_Congressional_District_election,_2020

Incumbent Rep. Cindy Axne (D) defeated David Young (R) and Bryan Holder (L) in the general election for Iowa's 3rd Congressional District on November 3, 2020. (49% to 47.6%)

The race was one of 56 U.S. House rematches from 2018. In 2018, Axne defeated incumbent Young, receiving 49% of the vote to Young's 47%. In 2016, Young won re-election against Jim Mowrer (D) 53% to 40%. Before the 2018 election, the district had been represented by a Republican since 2013.

https://www.desmoinesregister.com/story/news/politics/2020/11/02/iowa-district-3-election-results-cindy-axne-david-young/3728729001/

"Preliminary results from the Iowa Secretary of State show Axne repeated her 2018 path to victory of carving out a large margin of support in Polk County and keeping losses in the other 15 counties from overwhelming that lead. The unofficial figures showed an overall narrower margin of victory than two years ago, with her winning by less than 1.5 percentage points, or by about 6,000 votes, versus 2.2 percentage points or 7,700 votes in 2018. Libertarian Bryan Jack Holder won about 15,000 votes, or 3.4% of the total in the 2020 election."

(IMHO, Young should have demanded an audit. When Axne got in, it was a squeaker and continues to be one. And what about the Libertarian getting 3.4%?. This one only has one Dominion system and one ES&S. Unisyn I'm not sure on. However, again, anything "won" by a 3% - 5% margin should be audited)

https://ballotpedia.org/Iowa%27s_3rd_Congressional_District

Iowa's 3rd Congressional District currently covers an area in the southwestern corner of Iowa. Polk, Dallas, Guthrie, Warren, Madison, Adair, Cass, Pottawattamie, Mills, Fremont, Page, Montgomery, Taylor, Adams, Union and Ringgold counties are included in this district.[3]

https://sos.iowa.gov/elections/pdf/covotesystem.pdf (Simplified this time, county, precinct#s, voting system)

Polk- 177 Unisyn

Dallas- 34 Unisyn

Guthrie- 8 Unisyn

Warren- 31 Unisyn

Madison- 9 Unisyn

Adair- 5 Dominion

Cass- 13 Unisyn

Pottawattamie- 40 ES&S

Mills- 11 Unisyn

Fremont- 5 Unisyn

Page- 8 Unisyn

Montgomery- 7 Unisyn

Taylor- 7 Unisyn

Adams- 5 Unisyn

Union- 8 Unisyn

Ringgold- 7 Unisyn