Why did Biden final­ly decide to build more bor­der wall?

Pres­i­dent Joe Biden’s deci­sion to move for­ward with the con­struc­tion of new bor­der wall reflects a fail­ure of his immi­gra­tion poli­cies amid wide­spread crit­i­cism ahead of next year’s elec­tion.
The move, orig­i­nal­ly announced over the sum­mer, first received wide­spread media cov­er­age in Octo­ber after Depart­ment of Home­land Secu­ri­ty Sec­re­tary Ale­jan­dro May­orkas waived more than 20 envi­ron­men­tal laws, kick-start­ing the process despite the pres­i­den­t’s cam­paign promise not to con­tin­ue the Trump admin­is­tra­tion’s bor­der poli­cies.
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Cus­toms and Bor­der Pro­tec­tion addi­tion­al­ly out­lined in August the dimen­sions and specifics for “up to 20 miles” of new bor­der con­struc­tion, which includ­ed “18-foot high, six-inch diam­e­ter bol­lards embed­ded into a mov­able, con­crete, jer­sey bar­ri­er-style base sys­tem.”
The projects also calls for gates, cam­eras, fi …