operation failed the republican national committee began working three years ago to step up their game. how is what you re doing in 2016 different from what you did in 2012? we are 100 miles away from where we were in 2012. reporter: the biggest difference? activists now use this phone app to get out the vote. it will show you their party affiliation, how reliable they are as a voter, their age, stuff like that. you just click that voter, do take survey, boom, right there. reporter: it gives volunteers what s called dynamic scripting. prompting different pitchers to voters depending on their answers. information while instantly sent back to rnc headquarters. we need to talk to propensity of republicans and make sure they know when the election is and figure out who they are going to support. reporter: now in the final push, thousands of staffers and volunteers are using that app in battleground states across the country. the rnc leading donald trump s ground operation says
critical, it will be. it was a huge part of president obama s victories. republicans who have a smaller ground operation in 2012 are now stepping up their efforts to drive voters to the polls. dana bash has more. reporte i m going mark you down for 12:00 saturday for phone banking. reporter: on the stump. get out and vote. reporter: it s about getting out the vote. for republicans, that means learning from their mistakes. after the lagging 2012 operation failed, the republican national committee began working three years ago to step up their game. how is what you are doing in 2016 different from 2012? we are 100 miles away from where we were in 2012. reporter: the biggest difference, they use this phone app to get out the vote. it will show you their party affiliation, how reliable they are as a voter, their age, stuff
three years ago to step up their game. how is what you re doing in 2016 different from what you did in 2012? we are 100 miles away from where we were in 2012. reporter: the biggest difference, activists use this phone app to get out the vote. it will show you their party affiliation, how reliable they are as a voter. their age, stuff like that. you just click that voter. do take survey and right there. reporter: it gives volunteers what is called dynamic scripting. prompting different pitches to voters depending on their answers. information all instantly sent back to rnc headquarters. we need to talk to republicans and make sure they know when the election is. reporter: now, in the final push thousands of staffers and volunteers are using that app in battleground states across the country. the rnc leading trump s ground operation says they will complete 17 million door knocks
entering the country since the paris terror attacks. the french interior minister says people who have been turned away were deemed, quote, security risks to our public order. he also said there are 15,000 officers currently stationed along france s borders. in belgium, there was another arrest in connection with the shootings in paris, bringing that number to six. the mayor of one small belgian city says he has been working hard to try to de-radicalize some who have come back from fighting in the middle east. alexandra field has that story. reporter: the fastest growing town in belgium is small. billboards populations just 42,000. so when it started feeding fighters to syria, things spiraled quickly, but then stopped suddenly. the exodus started in the summer of 2012. reporter: so in those two years, from 2012 to 2014, you had 2,800 people leave here to go to syria. where are they now? some of them are still there.
now for the latest on the terror investigations in europe. belgian authority have arrested and charged one person with links to terrorist activities. two others have been placed in detention. in brussels, the city s threat level was lowered to serious, the second highest ranking after it was in lockdown last weekend. the small town outside the belgian capital was once called the city of jihadis after dozen of its citizens left for syria. since taking office, the mayor has taken extraordinary steps to change the city s reputation including a de-radicalization officer for the town. we have this report. reporter: the fastest growing town in belgium is small, population 42,000. when it started feeding fighters to syria, things spiralled quickly. then stopped suddenly. the exodus started in 2012. reporter: in the two years, from 2012 to 2014 had 28 people