<s>
Dave	B-Application
's	I-Application
Redistricting	I-Application
App	I-Application
(	O
DRA	O
)	O
is	O
an	O
online	O
web	O
app	O
originally	O
created	O
by	O
Dave	O
Bradlee	O
that	O
allows	O
anyone	O
to	O
simulate	O
redistricting	O
a	O
U.S.	O
state	O
's	O
congressional	O
and	O
legislative	O
districts	O
.	O
</s>
<s>
Dave	B-Application
's	I-Application
Redistricting	I-Application
has	O
frequently	O
been	O
mentioned	O
as	O
a	O
resource	O
that	O
can	O
be	O
used	O
to	O
combat	O
gerrymandering	O
,	O
given	O
that	O
the	O
public	O
has	O
free	O
access	O
to	O
it	O
.	O
</s>
<s>
Political	O
science	O
firms	O
such	O
as	O
FiveThirtyEight	B-Application
have	O
used	O
the	O
website	O
to	O
draw	O
examples	O
of	O
gerrymandered	O
districts	O
,	O
including	O
on	O
their	O
famous	O
Atlas	O
of	O
Redistricting	O
.	O
</s>
<s>
DRA	B-Application
2020	I-Application
is	O
built	O
by	O
a	O
small	O
team	O
of	O
volunteers	O
—	O
Dave	O
Bradlee	O
,	O
Terry	O
Crowley	O
,	O
Alec	O
Ramsay	O
,	O
and	O
David	O
Rinn	O
—	O
all	O
with	O
a	O
shared	O
passion	O
for	O
technology	O
&	O
democracy	O
and	O
all	O
Microsoft	O
veterans	O
.	O
</s>
<s>
DRA	B-Application
2020	I-Application
added	O
several	O
major	O
features	O
to	O
the	O
first	O
generation	O
app	O
:	O
</s>
<s>
2.2	O
:	O
This	O
uses	O
Bing	B-Application
Maps	I-Application
,	O
an	O
outdated	O
software	O
that	O
projects	O
the	O
districts	O
of	O
a	O
single	O
state	O
onto	O
a	O
map	O
of	O
the	O
United	O
States	O
.	O
</s>
<s>
2.5	O
:	O
After	O
Bing	B-Application
Maps	I-Application
announced	O
that	O
it	O
would	O
no	O
longer	O
be	O
updating	O
for	O
the	O
foreseen	O
future	O
,	O
the	O
U.S.	O
Map	O
feature	O
was	O
removed	O
.	O
</s>
<s>
DRA	B-Application
2020	I-Application
:	O
At	O
the	O
end	O
of	O
2018	O
,	O
a	O
beta	O
version	O
of	O
2020	O
was	O
released	O
.	O
</s>
<s>
This	O
version	O
that	O
did	O
not	O
require	O
Microsoft	B-Application
Silverlight	I-Application
and	O
could	O
be	O
used	O
in	O
any	O
web	O
browser	O
.	O
</s>
<s>
DRA	B-Application
2020	I-Application
has	O
been	O
under	O
continuous	O
development	O
since	O
and	O
is	O
built	O
using	O
React	B-Application
(	O
JavaScript	O
library	O
)	O
,	O
Mapbox	O
,	O
OpenStreetMap	O
,	O
TypeScript	B-Language
,	O
Node.js	B-Language
,	O
Amazon	B-Application
Web	I-Application
Services	I-Application
,	O
as	O
well	O
as	O
many	O
open	O
source	O
components	O
,	O
tools	O
,	O
and	O
icons	O
.	O
</s>
