Completed: Border wall is up and running.
Under Construction: Wall that is actively being built.
Pre-Construction: Land has been secured.  Just waiting on construction crews to start work.

Note: Updates are weekly and typically on the same day of the week in a given month.  For example, it may occur every Monday in February, but every Wednesday in March.  Updates are typically posted on twitter around 10 to 10:30 am Central time.  Not often, but there may be a few weeks where there are no updates.  I will try to limit my sources for updates to officials from CBP.

10/07/19: First known weekly update.
02/17/20: Highest number of pre-construction border wall at 417 miles.
10/29/20: Lowest number of pre-construction border wall at 87 miles.
07/13/20: Highest number of miles of the border wall being actively built at 342.
07/27/20: Highest weekly increase in border wall completed at 11 miles.

Longest delay between updates: about three weeks.  Has happened about 4 times so far:

• 12/23/19 - 01/13/20 (3 weeks)
  
• 05/24/20 - 06/15/20 (3 weeks)
  
• 08/10/20 - 08/31/20 (3 weeks)
  
• 10/29/20 - 11/16/20 (about 3 weeks)

• Fox News: Border Wall
  
• Fox News: Border Security
  
• Fox News: Illegal Immigrants
  
• Fox News: Immigration
  
• Fox News: Mexican Cartel Violence

• ★ Borderreport Note: Liberal, but has good on the ground information.
  
• The Epoch Times
  
• Texas: Border Crisis Update
  
• Twitter: The Border Observer Good resources.
  
• National Review news on Trump Border Wall I find this to lean Liberal. see allsides.com
  
• We Build the Wall
  
• OANN Tag: Border Wall Conservative
  
• Immigration Reform.com
  
• Tucson.com: border fence
  
• Tucson.com: border wall
  
• Breitbart: border
  
• El American

• Official website of the Department of Homeland Security
  
• U.S. Customs and Border Protection Apprehensions by month and year Updated on Thursday 11/14/19 and Thursday 11/19/20 in the evening.
  
• Southwest Land Border Encounters
  
• CBP: Drug Seizure Statistics
  
• Border Wall System Started (4/22/20).  Archived ref was usually updated weekly
  
• Border Wall System - Frequently Asked Questions

• Border Security
  
• Border Wall
  
• CBP

• U.S. Customs and Border Protection youtube channel
  
• United States Border Patrol
  

• The Political Class Just Outed Themselves As Total Hypocrites
  2/1/21 Rumble duration 7:19
  Note: Dinesh D'Souza exposes Democrats as hypocrites and explains the real reason Democrats are opposed to the border wall system.  Dems are opposed to U.S. citizens and support illegal aliens as they will help to shift the power of the U.S. into a one party state in favor of the Democrats.
  
  
• A Look at America's Border Wall
  1/7/21 youtube duration 2:58
  Note: How border wall helps protect environment, decreases apprehensions with stats.
  
  
• Acting Customs and Border Protection chief rips Biden's immigration policy
  12/17/20 foxnews duration 5:50
  Note: Good answers from acting CBP Chief Mark Morgan regarding Zero Tolerance and what is driving new caravan.
  
  
• Q&A: Border Patrol Chief Rodney Scott talks border wall, 2020 and beyond
  12/11/20 borderreport.com duration 8:45
  Note: Has transcript.  This interview took place on 10/29/20 after the celebration video of the 400th mile of border wall completed.
  
  
• Tour The New Border Wall With The Chief Of The Border Patrol Rodney Scott
  10/30/20 Youtube duration: 3:08
  
  
• Celebration of the 400th Mile of Border Wall System
  10/29/20 Youtube. duration: 54:54.
  Lots of useful information and stats here.  See also transcript
  
  
• CBP Chief Rodney Scott on wall vs fence argument
  10/26/20 twitter. duration: 2:08.
  Note: Mentions his good working relationship with Mexican law enforcement.
  
  
• Chief Rodney Scott discusses digging under the border
  10/23/20 Twitter duration: 1:04
  
  
• CBP responds regarding boy climbing over border wall
  10/4/19 Twitter duration: 1:38
  Note: This is in regard to the oft posted video of a boy climbing the border wall with a rope ladder ref.
  
  
• TRUMPS BORDER WALL from SEA TO SHINING SEA !!
  9/30/20 Youtube duration: 11:34
  Note: Drone coverage of entire Southwest border from coast to coast.  Filming was from 3/1/20 through 3/12/20.
  
  
• A Nation of Immigrants
  8/20/18 Youtube duration: 5:31
  Note: Counters the notion that U.S. border control is xenophobic.

Articles

• 02/08/21 Daily Signal: With Work Stopped, 7 Things I Saw at Border Wall Discusses the negative effects of stopping construction of the border wall before it is completed.  With Rep. Andy Biggs of Arizona.
  
  
• 04/07/20 Daily Signal: DHS Chief Chad Wolf Hopes to Have 450 Miles of Border Wall Built by End of Year
  
  
• 02/10/19 Daily Signal: The Truth About Border Walls' Effectiveness

• 3/21/20 Audible Defend the Border and Save Lives By: Tom Homan Amazon

• UNITED STATES DEPARTMENT OF JUSTICE
  EXECUTIVE OFFICE FOR IMMIGRATION REVIEW
  MYTHS vs FACTS ABOUT IMMIGRATION PROCEEDINGS
  December 2020
  
• Other countries with border walls