LWC extract values from Apex Map<String,List<Sobject>>

In my LWC I am using an Apex Class to return a Map<String,List> containing lists for Leads and Contacts.
I want to iterate this Map and use the individual lists in separate datatables.
I have this working when I configure the apex class to return just the lead List. However I cannot figure out the syntax for iterating the Map and returning the specific lists based on the Key. Below is the code

LWC .js

    leadData = [];
    leadWiredList;
    count = 0;
    @wire(getCampaignMemberList, {
        campaignId: '$campaignId',
        leadSearchKey: '$searchKey', 
        leadSortBy: '$sortedBy', 
        leadSortDirection: '$sortedDirection'
    })
    wiredLeads(leadResponse){
        this.leadWiredList = leadResponse;
        const error = leadResponse.error;
        if(leadResponse.data){
            let tempList = []; 
            leadResponse.data.forEach((record) => {
            let r = Object.assign({}, record);  
                r.LeadLink = '/' + r.Id;
                r.SdrOwner = r.SDR_Owner__r?.Name;
            tempList.push(r);             
            });          
        this.leadData = tempList;
            console.log('Leads ' + this.leadData.length);
        }else{
            this.leadData = [];
        }   
    }

Apex

@AuraEnabled(cacheable=true)
    public static Map<String,List<Sobject>> getLeadsContacts(
    //public static List<Sobject> getLeadsContacts(
        String campaignId, 
        String leadSearchKey, 
        String leadSortBy, 
        String leadSortDirection
    ){
        Map<String,List<Sobject>> leadsContactsMap = new Map<String,List<Sobject>>();
        List<CampaignMember> campaignMembers = [
            SELECT Id, Campaign.Name, LeadId, ContactId
            FROM CampaignMember
            WHERE CampaignId = :campaignId
            AND (
                Lead.OwnerId = :runningUserId
                OR Contact.OwnerId = :runningUserId
            )
        ];

        List<String> leadIds = new List<String>();
        List<String> contactIds = new List<String>();
        for(CampaignMember cm : campaignMembers){
            if(cm.LeadId != null){
                leadIds.add('\'' + cm.LeadId + '\'');
            }else{
                contactIds.add('\'' + cm.ContactId + '\'');
            }     
        }

        String leadQuery = 
            'SELECT Id,'
            + 'Lead_Status_sort_order__c, SDR_Owner__r.Name, Name, email, Title, Company '
            + 'FROM Lead '
            + 'WHERE Id IN ' + leadIds;
        if(leadSearchKey != null && leadSearchKey != '') {
            String key = '%' + leadSearchKey + '%';
            leadQuery += 
            ' AND Name LIKE :key';
        }
        if(leadSortBy != null && leadSortDirection != null) {
            leadQuery += ' ORDER BY ' + leadSortBy + ' ' + leadSortDirection;
        }
            system.debug('Lead Query = ' + leadQuery);
        List<Lead> leadlist = Database.query(leadQuery);

       List<Contact> contactList = [
            SELECT Id, Name, Email
            FROM Contact
            WHERE ID IN :contactIds
        ];

        leadsContactsMap.put('leads', leadlist);
        leadsContactsMap.put('contacts', contactList);
            system.debug('leadsContactsMap = ' + leadsContactsMap);

      return leadsContactsMap;
  }